Download DUET Master 2018 DU MSc Zoology Question Paper With Answer Key

Download DUET (Delhi University Entrance Test conducted by the NTA) 2018 DU MSc Zoology Question Paper With Solution Key

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DU MSc Zoology
Topic:- DU_J18_MSC_ZOO
Which of the following is NOT a characteristic of lakes suffering from organic pollution?
[Question ID = 582]
1. High microbial concentration [Option ID = 2325]
2. High biochemical oxygen demand [Option ID = 2327]
3. Low phosphate levels [Option ID = 2328]
4. Frequent algal blooms [Option ID = 2326]
Correct Answer :-
Low phosphate levels [Option ID = 2328]
Which of the following was probably absent at the time of origin of life ?
[Question ID = 546]
1. Oxygen [Option ID = 2182]
2. Hydrogen [Option ID = 2181]
3. Methane [Option ID = 2183]
4. Carbon dioxide [Option ID = 2184]
Correct Answer :-
Oxygen [Option ID = 2182]
Which of the following genotypes causes Klinefelter syndrome?
[Question ID = 530]
1. XYY [Option ID = 2120]
2. XO [Option ID = 2117]
3. XXY [Option ID = 2118]
4. XX [Option ID = 2119]
Correct Answer :-
XXY [Option ID = 2118]
Which of the following is wrong match for enzyme classification?
[Question ID = 601]
1. EC 2 ? Trasnferases [Option ID = 2402]
2. EC 3- Hydrolases [Option ID = 2403]
3. EC 1 - Oxidoreductases [Option ID = 2401]
4. EC 4- Ligases [Option ID = 2404]
Correct Answer :-
EC 4- Ligases [Option ID = 2404]
Which of the following is not a possible explanation for the rapid rate of evolution of beak shape in Darwin?s finches?
[Question ID = 614]
1. Strong selection pressure [Option ID = 2455]
2. Small population size [Option ID = 2456]
3. High mutation rate [Option ID = 2453]
4. High emigrations and immigration rate [Option ID = 2454]
Correct Answer :-
High mutation rate [Option ID = 2453]
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DU MSc Zoology
Topic:- DU_J18_MSC_ZOO
Which of the following is NOT a characteristic of lakes suffering from organic pollution?
[Question ID = 582]
1. High microbial concentration [Option ID = 2325]
2. High biochemical oxygen demand [Option ID = 2327]
3. Low phosphate levels [Option ID = 2328]
4. Frequent algal blooms [Option ID = 2326]
Correct Answer :-
Low phosphate levels [Option ID = 2328]
Which of the following was probably absent at the time of origin of life ?
[Question ID = 546]
1. Oxygen [Option ID = 2182]
2. Hydrogen [Option ID = 2181]
3. Methane [Option ID = 2183]
4. Carbon dioxide [Option ID = 2184]
Correct Answer :-
Oxygen [Option ID = 2182]
Which of the following genotypes causes Klinefelter syndrome?
[Question ID = 530]
1. XYY [Option ID = 2120]
2. XO [Option ID = 2117]
3. XXY [Option ID = 2118]
4. XX [Option ID = 2119]
Correct Answer :-
XXY [Option ID = 2118]
Which of the following is wrong match for enzyme classification?
[Question ID = 601]
1. EC 2 ? Trasnferases [Option ID = 2402]
2. EC 3- Hydrolases [Option ID = 2403]
3. EC 1 - Oxidoreductases [Option ID = 2401]
4. EC 4- Ligases [Option ID = 2404]
Correct Answer :-
EC 4- Ligases [Option ID = 2404]
Which of the following is not a possible explanation for the rapid rate of evolution of beak shape in Darwin?s finches?
[Question ID = 614]
1. Strong selection pressure [Option ID = 2455]
2. Small population size [Option ID = 2456]
3. High mutation rate [Option ID = 2453]
4. High emigrations and immigration rate [Option ID = 2454]
Correct Answer :-
High mutation rate [Option ID = 2453]
6)
7)
8)
9)
10)
11)
Which of the following animals is primarily an ectotherm?
[Question ID = 542]
1. Hawk [Option ID = 2165]
2. Lizard [Option ID = 2166]
3. Elephant [Option ID = 2168]
4. Shrew [Option ID = 2167]
Correct Answer :-
Lizard [Option ID = 2166]
Which of the following technique was used by Messelon and Stahl to separate DNA labeled with 15
N
from 14
N
?
[Question ID = 609]
1. Ion-exchange chromatography [Option ID = 2436]
2. Molecular-sieve filtration chromatography [Option ID = 2435]
3. Agarose Gel electrophoresis [Option ID = 2434]
4. CsCl density gradient centrifugation [Option ID = 2433]
Correct Answer :-
CsCl density gradient centrifugation [Option ID = 2433]
Which of the following molecule is most abundant in living system?
[Question ID = 608]
1. Water [Option ID = 2432]
2. Cellulose [Option ID = 2430]
3. Protein [Option ID = 2429]
4. Starch [Option ID = 2431]
Correct Answer :-
Water [Option ID = 2432]
Which system is active under stress?
[Question ID = 536]
1. Sympathetic nervous system [Option ID = 2142]
2. Somatic nervous system [Option ID = 2143]
3. Parasympathetic nervous system [Option ID = 2141]
4. Complete autonomic nervous system [Option ID = 2144]
Correct Answer :-
Sympathetic nervous system [Option ID = 2142]
Which is the first National park established in India:
[Question ID = 583]
1. Jim Corbet National Park [Option ID = 2329]
2. Periyar National Park [Option ID = 2332]
3. Kanziranga National Park [Option ID = 2330]
4. Kanha National Park [Option ID = 2331]
Correct Answer :-
Jim Corbet National Park [Option ID = 2329]
Doubling time for E. coli is 20 min. If the initial number of bacterium in a culture is 100, what would be number of bacterium after 60
min. [Question ID = 606]
1. 300 [Option ID = 2422]
2. 400 [Option ID = 2423]
3. 100 [Option ID = 2421]
4. 800 [Option ID = 2424]
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DU MSc Zoology
Topic:- DU_J18_MSC_ZOO
Which of the following is NOT a characteristic of lakes suffering from organic pollution?
[Question ID = 582]
1. High microbial concentration [Option ID = 2325]
2. High biochemical oxygen demand [Option ID = 2327]
3. Low phosphate levels [Option ID = 2328]
4. Frequent algal blooms [Option ID = 2326]
Correct Answer :-
Low phosphate levels [Option ID = 2328]
Which of the following was probably absent at the time of origin of life ?
[Question ID = 546]
1. Oxygen [Option ID = 2182]
2. Hydrogen [Option ID = 2181]
3. Methane [Option ID = 2183]
4. Carbon dioxide [Option ID = 2184]
Correct Answer :-
Oxygen [Option ID = 2182]
Which of the following genotypes causes Klinefelter syndrome?
[Question ID = 530]
1. XYY [Option ID = 2120]
2. XO [Option ID = 2117]
3. XXY [Option ID = 2118]
4. XX [Option ID = 2119]
Correct Answer :-
XXY [Option ID = 2118]
Which of the following is wrong match for enzyme classification?
[Question ID = 601]
1. EC 2 ? Trasnferases [Option ID = 2402]
2. EC 3- Hydrolases [Option ID = 2403]
3. EC 1 - Oxidoreductases [Option ID = 2401]
4. EC 4- Ligases [Option ID = 2404]
Correct Answer :-
EC 4- Ligases [Option ID = 2404]
Which of the following is not a possible explanation for the rapid rate of evolution of beak shape in Darwin?s finches?
[Question ID = 614]
1. Strong selection pressure [Option ID = 2455]
2. Small population size [Option ID = 2456]
3. High mutation rate [Option ID = 2453]
4. High emigrations and immigration rate [Option ID = 2454]
Correct Answer :-
High mutation rate [Option ID = 2453]
6)
7)
8)
9)
10)
11)
Which of the following animals is primarily an ectotherm?
[Question ID = 542]
1. Hawk [Option ID = 2165]
2. Lizard [Option ID = 2166]
3. Elephant [Option ID = 2168]
4. Shrew [Option ID = 2167]
Correct Answer :-
Lizard [Option ID = 2166]
Which of the following technique was used by Messelon and Stahl to separate DNA labeled with 15
N
from 14
N
?
[Question ID = 609]
1. Ion-exchange chromatography [Option ID = 2436]
2. Molecular-sieve filtration chromatography [Option ID = 2435]
3. Agarose Gel electrophoresis [Option ID = 2434]
4. CsCl density gradient centrifugation [Option ID = 2433]
Correct Answer :-
CsCl density gradient centrifugation [Option ID = 2433]
Which of the following molecule is most abundant in living system?
[Question ID = 608]
1. Water [Option ID = 2432]
2. Cellulose [Option ID = 2430]
3. Protein [Option ID = 2429]
4. Starch [Option ID = 2431]
Correct Answer :-
Water [Option ID = 2432]
Which system is active under stress?
[Question ID = 536]
1. Sympathetic nervous system [Option ID = 2142]
2. Somatic nervous system [Option ID = 2143]
3. Parasympathetic nervous system [Option ID = 2141]
4. Complete autonomic nervous system [Option ID = 2144]
Correct Answer :-
Sympathetic nervous system [Option ID = 2142]
Which is the first National park established in India:
[Question ID = 583]
1. Jim Corbet National Park [Option ID = 2329]
2. Periyar National Park [Option ID = 2332]
3. Kanziranga National Park [Option ID = 2330]
4. Kanha National Park [Option ID = 2331]
Correct Answer :-
Jim Corbet National Park [Option ID = 2329]
Doubling time for E. coli is 20 min. If the initial number of bacterium in a culture is 100, what would be number of bacterium after 60
min. [Question ID = 606]
1. 300 [Option ID = 2422]
2. 400 [Option ID = 2423]
3. 100 [Option ID = 2421]
4. 800 [Option ID = 2424]
12)
13)
14)
15)
16)
17)
Correct Answer :-
800 [Option ID = 2424]
X-chromosome inactivation
[Question ID = 527]
1. Is the cause of the y chromosome being genetically inactive [Option ID = 2106]
2. Takes place in humans so that the same X chromosome is inactive in all the cells of a female [Option ID = 2107]
3. Normally takes place in males but not in females [Option ID = 2105]
4. Results in genetically turning off one of the two X chromosome in female mammals [Option ID = 2108]
Correct Answer :-
Results in genetically turning off one of the two X chromosome in female mammals [Option ID = 2108]
In ecological succession from pioneer to climax community, the biomass shall:
[Question ID = 584]
1. Increase and then decrease [Option ID = 2334]
2. Increase continuously [Option ID = 2336]
3. Decrease [Option ID = 2333]
4. No relation [Option ID = 2335]
Correct Answer :-
Increase continuously [Option ID = 2336]
Import of glucose by the liver cell:
[Question ID = 569]
1. Is dependent on hydrolysis of ATP [Option ID = 2273]
2. Is facilitated by GLUT2 [Option ID = 2276]
3. Occurs throughout the phospholipid bilayer [Option ID = 2275]
4. Requires expression of GLUT1 on the plasma membrane [Option ID = 2274]
Correct Answer :-
Is facilitated by GLUT2 [Option ID = 2276]
The origin of the jaw in the gnathostomes is the
[Question ID = 524]
1. hyoid [Option ID = 2096]
2. gill arch [Option ID = 2093]
3. notochord [Option ID = 2095]
4. bones supporting the cranium [Option ID = 2094]
Correct Answer :-
gill arch [Option ID = 2093]
The dynamics of which cytoskeletal element changes in a moving amoeba?
[Question ID = 568]
1. Intermediate filaments [Option ID = 2271]
2. MreB [Option ID = 2272]
3. Microtubules [Option ID = 2269]
4. Microfilaments [Option ID = 2270]
Correct Answer :-
Microfilaments [Option ID = 2270]
Repeat core sequences consisting of 2, 3, or 4 base pairs are known as what?
[Question ID = 531]
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DU MSc Zoology
Topic:- DU_J18_MSC_ZOO
Which of the following is NOT a characteristic of lakes suffering from organic pollution?
[Question ID = 582]
1. High microbial concentration [Option ID = 2325]
2. High biochemical oxygen demand [Option ID = 2327]
3. Low phosphate levels [Option ID = 2328]
4. Frequent algal blooms [Option ID = 2326]
Correct Answer :-
Low phosphate levels [Option ID = 2328]
Which of the following was probably absent at the time of origin of life ?
[Question ID = 546]
1. Oxygen [Option ID = 2182]
2. Hydrogen [Option ID = 2181]
3. Methane [Option ID = 2183]
4. Carbon dioxide [Option ID = 2184]
Correct Answer :-
Oxygen [Option ID = 2182]
Which of the following genotypes causes Klinefelter syndrome?
[Question ID = 530]
1. XYY [Option ID = 2120]
2. XO [Option ID = 2117]
3. XXY [Option ID = 2118]
4. XX [Option ID = 2119]
Correct Answer :-
XXY [Option ID = 2118]
Which of the following is wrong match for enzyme classification?
[Question ID = 601]
1. EC 2 ? Trasnferases [Option ID = 2402]
2. EC 3- Hydrolases [Option ID = 2403]
3. EC 1 - Oxidoreductases [Option ID = 2401]
4. EC 4- Ligases [Option ID = 2404]
Correct Answer :-
EC 4- Ligases [Option ID = 2404]
Which of the following is not a possible explanation for the rapid rate of evolution of beak shape in Darwin?s finches?
[Question ID = 614]
1. Strong selection pressure [Option ID = 2455]
2. Small population size [Option ID = 2456]
3. High mutation rate [Option ID = 2453]
4. High emigrations and immigration rate [Option ID = 2454]
Correct Answer :-
High mutation rate [Option ID = 2453]
6)
7)
8)
9)
10)
11)
Which of the following animals is primarily an ectotherm?
[Question ID = 542]
1. Hawk [Option ID = 2165]
2. Lizard [Option ID = 2166]
3. Elephant [Option ID = 2168]
4. Shrew [Option ID = 2167]
Correct Answer :-
Lizard [Option ID = 2166]
Which of the following technique was used by Messelon and Stahl to separate DNA labeled with 15
N
from 14
N
?
[Question ID = 609]
1. Ion-exchange chromatography [Option ID = 2436]
2. Molecular-sieve filtration chromatography [Option ID = 2435]
3. Agarose Gel electrophoresis [Option ID = 2434]
4. CsCl density gradient centrifugation [Option ID = 2433]
Correct Answer :-
CsCl density gradient centrifugation [Option ID = 2433]
Which of the following molecule is most abundant in living system?
[Question ID = 608]
1. Water [Option ID = 2432]
2. Cellulose [Option ID = 2430]
3. Protein [Option ID = 2429]
4. Starch [Option ID = 2431]
Correct Answer :-
Water [Option ID = 2432]
Which system is active under stress?
[Question ID = 536]
1. Sympathetic nervous system [Option ID = 2142]
2. Somatic nervous system [Option ID = 2143]
3. Parasympathetic nervous system [Option ID = 2141]
4. Complete autonomic nervous system [Option ID = 2144]
Correct Answer :-
Sympathetic nervous system [Option ID = 2142]
Which is the first National park established in India:
[Question ID = 583]
1. Jim Corbet National Park [Option ID = 2329]
2. Periyar National Park [Option ID = 2332]
3. Kanziranga National Park [Option ID = 2330]
4. Kanha National Park [Option ID = 2331]
Correct Answer :-
Jim Corbet National Park [Option ID = 2329]
Doubling time for E. coli is 20 min. If the initial number of bacterium in a culture is 100, what would be number of bacterium after 60
min. [Question ID = 606]
1. 300 [Option ID = 2422]
2. 400 [Option ID = 2423]
3. 100 [Option ID = 2421]
4. 800 [Option ID = 2424]
12)
13)
14)
15)
16)
17)
Correct Answer :-
800 [Option ID = 2424]
X-chromosome inactivation
[Question ID = 527]
1. Is the cause of the y chromosome being genetically inactive [Option ID = 2106]
2. Takes place in humans so that the same X chromosome is inactive in all the cells of a female [Option ID = 2107]
3. Normally takes place in males but not in females [Option ID = 2105]
4. Results in genetically turning off one of the two X chromosome in female mammals [Option ID = 2108]
Correct Answer :-
Results in genetically turning off one of the two X chromosome in female mammals [Option ID = 2108]
In ecological succession from pioneer to climax community, the biomass shall:
[Question ID = 584]
1. Increase and then decrease [Option ID = 2334]
2. Increase continuously [Option ID = 2336]
3. Decrease [Option ID = 2333]
4. No relation [Option ID = 2335]
Correct Answer :-
Increase continuously [Option ID = 2336]
Import of glucose by the liver cell:
[Question ID = 569]
1. Is dependent on hydrolysis of ATP [Option ID = 2273]
2. Is facilitated by GLUT2 [Option ID = 2276]
3. Occurs throughout the phospholipid bilayer [Option ID = 2275]
4. Requires expression of GLUT1 on the plasma membrane [Option ID = 2274]
Correct Answer :-
Is facilitated by GLUT2 [Option ID = 2276]
The origin of the jaw in the gnathostomes is the
[Question ID = 524]
1. hyoid [Option ID = 2096]
2. gill arch [Option ID = 2093]
3. notochord [Option ID = 2095]
4. bones supporting the cranium [Option ID = 2094]
Correct Answer :-
gill arch [Option ID = 2093]
The dynamics of which cytoskeletal element changes in a moving amoeba?
[Question ID = 568]
1. Intermediate filaments [Option ID = 2271]
2. MreB [Option ID = 2272]
3. Microtubules [Option ID = 2269]
4. Microfilaments [Option ID = 2270]
Correct Answer :-
Microfilaments [Option ID = 2270]
Repeat core sequences consisting of 2, 3, or 4 base pairs are known as what?
[Question ID = 531]
18)
19)
20)
21)
22)
1. Single nucleotide polymorphisms (SNPs) [Option ID = 2121]
2. Minisatellites [Option ID = 2123]
3. Telomeres [Option ID = 2124]
4. Microsatellites [Option ID = 2122]
Correct Answer :-
Microsatellites [Option ID = 2122]
A haltere is a
[Question ID = 551]
1. Device used by a male insect to attract female for mating [Option ID = 2204]
2. balancing organ of housefly [Option ID = 2203]
3. sense organ of butterfly [Option ID = 2201]
4. modified forewing of beetle [Option ID = 2202]
Correct Answer :-
balancing organ of housefly [Option ID = 2203]
Linolenic (C18: 9,12,15) is an essential fatty acid for human because:
[Question ID = 555]
1. Lenolenic acid is available in fruits [Option ID = 2217]
2. Lenolenic acid gives much energy that palmitic acid [Option ID = 2219]
3. It is unsaturated fatty acid [Option ID = 2220]
4. Human cannot introduce double bond beyond 9-10 carbon of fatty acids [Option ID = 2218]
Correct Answer :-
Human cannot introduce double bond beyond 9-10 carbon of fatty acids [Option ID = 2218]
Passive immunity is obtained by:
[Question ID = 589]
1. Injecting the serum of another animal/individual containing antitoxin [Option ID = 2354]
2. Our own body cells preparing antibodies [Option ID = 2353]
3. Blood transfusion and blood clotting [Option ID = 2356]
4. Drinking medicinal concoctions [Option ID = 2355]
Correct Answer :-
Injecting the serum of another animal/individual containing antitoxin [Option ID = 2354]
2-amino-3 hydroxy propionic acid is the chemical name for which of the following amino acid:
[Question ID = 580]
1. serine [Option ID = 2320]
2. valine [Option ID = 2319]
3. glycine [Option ID = 2317]
4. alanine [Option ID = 2318]
Correct Answer :-
serine [Option ID = 2320]
Low pH of the lysosomal compartment is maintained by
[Question ID = 613]
1. Glycolysis [Option ID = 2452]
2. Electron transport chain [Option ID = 2449]
3. Proton ATPase at the membrane [Option ID = 2450]
4. Luminal acid production [Option ID = 2451]
Correct Answer :-
Proton ATPase at the membrane [Option ID = 2450]
FirstRanker.com - FirstRanker's Choice
1)
2)
3)
4)
5)
DU MSc Zoology
Topic:- DU_J18_MSC_ZOO
Which of the following is NOT a characteristic of lakes suffering from organic pollution?
[Question ID = 582]
1. High microbial concentration [Option ID = 2325]
2. High biochemical oxygen demand [Option ID = 2327]
3. Low phosphate levels [Option ID = 2328]
4. Frequent algal blooms [Option ID = 2326]
Correct Answer :-
Low phosphate levels [Option ID = 2328]
Which of the following was probably absent at the time of origin of life ?
[Question ID = 546]
1. Oxygen [Option ID = 2182]
2. Hydrogen [Option ID = 2181]
3. Methane [Option ID = 2183]
4. Carbon dioxide [Option ID = 2184]
Correct Answer :-
Oxygen [Option ID = 2182]
Which of the following genotypes causes Klinefelter syndrome?
[Question ID = 530]
1. XYY [Option ID = 2120]
2. XO [Option ID = 2117]
3. XXY [Option ID = 2118]
4. XX [Option ID = 2119]
Correct Answer :-
XXY [Option ID = 2118]
Which of the following is wrong match for enzyme classification?
[Question ID = 601]
1. EC 2 ? Trasnferases [Option ID = 2402]
2. EC 3- Hydrolases [Option ID = 2403]
3. EC 1 - Oxidoreductases [Option ID = 2401]
4. EC 4- Ligases [Option ID = 2404]
Correct Answer :-
EC 4- Ligases [Option ID = 2404]
Which of the following is not a possible explanation for the rapid rate of evolution of beak shape in Darwin?s finches?
[Question ID = 614]
1. Strong selection pressure [Option ID = 2455]
2. Small population size [Option ID = 2456]
3. High mutation rate [Option ID = 2453]
4. High emigrations and immigration rate [Option ID = 2454]
Correct Answer :-
High mutation rate [Option ID = 2453]
6)
7)
8)
9)
10)
11)
Which of the following animals is primarily an ectotherm?
[Question ID = 542]
1. Hawk [Option ID = 2165]
2. Lizard [Option ID = 2166]
3. Elephant [Option ID = 2168]
4. Shrew [Option ID = 2167]
Correct Answer :-
Lizard [Option ID = 2166]
Which of the following technique was used by Messelon and Stahl to separate DNA labeled with 15
N
from 14
N
?
[Question ID = 609]
1. Ion-exchange chromatography [Option ID = 2436]
2. Molecular-sieve filtration chromatography [Option ID = 2435]
3. Agarose Gel electrophoresis [Option ID = 2434]
4. CsCl density gradient centrifugation [Option ID = 2433]
Correct Answer :-
CsCl density gradient centrifugation [Option ID = 2433]
Which of the following molecule is most abundant in living system?
[Question ID = 608]
1. Water [Option ID = 2432]
2. Cellulose [Option ID = 2430]
3. Protein [Option ID = 2429]
4. Starch [Option ID = 2431]
Correct Answer :-
Water [Option ID = 2432]
Which system is active under stress?
[Question ID = 536]
1. Sympathetic nervous system [Option ID = 2142]
2. Somatic nervous system [Option ID = 2143]
3. Parasympathetic nervous system [Option ID = 2141]
4. Complete autonomic nervous system [Option ID = 2144]
Correct Answer :-
Sympathetic nervous system [Option ID = 2142]
Which is the first National park established in India:
[Question ID = 583]
1. Jim Corbet National Park [Option ID = 2329]
2. Periyar National Park [Option ID = 2332]
3. Kanziranga National Park [Option ID = 2330]
4. Kanha National Park [Option ID = 2331]
Correct Answer :-
Jim Corbet National Park [Option ID = 2329]
Doubling time for E. coli is 20 min. If the initial number of bacterium in a culture is 100, what would be number of bacterium after 60
min. [Question ID = 606]
1. 300 [Option ID = 2422]
2. 400 [Option ID = 2423]
3. 100 [Option ID = 2421]
4. 800 [Option ID = 2424]
12)
13)
14)
15)
16)
17)
Correct Answer :-
800 [Option ID = 2424]
X-chromosome inactivation
[Question ID = 527]
1. Is the cause of the y chromosome being genetically inactive [Option ID = 2106]
2. Takes place in humans so that the same X chromosome is inactive in all the cells of a female [Option ID = 2107]
3. Normally takes place in males but not in females [Option ID = 2105]
4. Results in genetically turning off one of the two X chromosome in female mammals [Option ID = 2108]
Correct Answer :-
Results in genetically turning off one of the two X chromosome in female mammals [Option ID = 2108]
In ecological succession from pioneer to climax community, the biomass shall:
[Question ID = 584]
1. Increase and then decrease [Option ID = 2334]
2. Increase continuously [Option ID = 2336]
3. Decrease [Option ID = 2333]
4. No relation [Option ID = 2335]
Correct Answer :-
Increase continuously [Option ID = 2336]
Import of glucose by the liver cell:
[Question ID = 569]
1. Is dependent on hydrolysis of ATP [Option ID = 2273]
2. Is facilitated by GLUT2 [Option ID = 2276]
3. Occurs throughout the phospholipid bilayer [Option ID = 2275]
4. Requires expression of GLUT1 on the plasma membrane [Option ID = 2274]
Correct Answer :-
Is facilitated by GLUT2 [Option ID = 2276]
The origin of the jaw in the gnathostomes is the
[Question ID = 524]
1. hyoid [Option ID = 2096]
2. gill arch [Option ID = 2093]
3. notochord [Option ID = 2095]
4. bones supporting the cranium [Option ID = 2094]
Correct Answer :-
gill arch [Option ID = 2093]
The dynamics of which cytoskeletal element changes in a moving amoeba?
[Question ID = 568]
1. Intermediate filaments [Option ID = 2271]
2. MreB [Option ID = 2272]
3. Microtubules [Option ID = 2269]
4. Microfilaments [Option ID = 2270]
Correct Answer :-
Microfilaments [Option ID = 2270]
Repeat core sequences consisting of 2, 3, or 4 base pairs are known as what?
[Question ID = 531]
18)
19)
20)
21)
22)
1. Single nucleotide polymorphisms (SNPs) [Option ID = 2121]
2. Minisatellites [Option ID = 2123]
3. Telomeres [Option ID = 2124]
4. Microsatellites [Option ID = 2122]
Correct Answer :-
Microsatellites [Option ID = 2122]
A haltere is a
[Question ID = 551]
1. Device used by a male insect to attract female for mating [Option ID = 2204]
2. balancing organ of housefly [Option ID = 2203]
3. sense organ of butterfly [Option ID = 2201]
4. modified forewing of beetle [Option ID = 2202]
Correct Answer :-
balancing organ of housefly [Option ID = 2203]
Linolenic (C18: 9,12,15) is an essential fatty acid for human because:
[Question ID = 555]
1. Lenolenic acid is available in fruits [Option ID = 2217]
2. Lenolenic acid gives much energy that palmitic acid [Option ID = 2219]
3. It is unsaturated fatty acid [Option ID = 2220]
4. Human cannot introduce double bond beyond 9-10 carbon of fatty acids [Option ID = 2218]
Correct Answer :-
Human cannot introduce double bond beyond 9-10 carbon of fatty acids [Option ID = 2218]
Passive immunity is obtained by:
[Question ID = 589]
1. Injecting the serum of another animal/individual containing antitoxin [Option ID = 2354]
2. Our own body cells preparing antibodies [Option ID = 2353]
3. Blood transfusion and blood clotting [Option ID = 2356]
4. Drinking medicinal concoctions [Option ID = 2355]
Correct Answer :-
Injecting the serum of another animal/individual containing antitoxin [Option ID = 2354]
2-amino-3 hydroxy propionic acid is the chemical name for which of the following amino acid:
[Question ID = 580]
1. serine [Option ID = 2320]
2. valine [Option ID = 2319]
3. glycine [Option ID = 2317]
4. alanine [Option ID = 2318]
Correct Answer :-
serine [Option ID = 2320]
Low pH of the lysosomal compartment is maintained by
[Question ID = 613]
1. Glycolysis [Option ID = 2452]
2. Electron transport chain [Option ID = 2449]
3. Proton ATPase at the membrane [Option ID = 2450]
4. Luminal acid production [Option ID = 2451]
Correct Answer :-
Proton ATPase at the membrane [Option ID = 2450]
23)
24)
25)
26)
27)
28)
Kidney of the vertebrate embryo develops from:
[Question ID = 591]
1. Mesoderm [Option ID = 2363]
2. Archenteron [Option ID = 2364]
3. Endoderm [Option ID = 2362]
4. Ectoderm [Option ID = 2361]
Correct Answer :-
Mesoderm [Option ID = 2363]
DNA is genetic material in
[Question ID = 563]
1. Only eukaryotes [Option ID = 2251]
2. Only Prokaryotes and eukaryotes [Option ID = 2250]
3. All viruses, prokaryotes, eukaryotes [Option ID = 2249]
4. Some viruses, all prokaryotes and eukaryotes [Option ID = 2252]
Correct Answer :-
Some viruses, all prokaryotes and eukaryotes [Option ID = 2252]
Which of the following statement is NOT TRUE for a competitive inhibitor in an enzyme catalysed reaction?
[Question ID = 600]
1. Their inhibition can be reversed by increasing the substrate concentration [Option ID = 2400]
2. They compete with substrate for binding to the active site. [Option ID = 2398]
3. They are structural analogues of the substrate. [Option ID = 2397]
4. They increase the Km, and decrease the Vmax. [Option ID = 2399]
Correct Answer :-
They increase the Km, and decrease the Vmax. [Option ID = 2399]
Knee joint is a
[Question ID = 548]
1. fibrous joint [Option ID = 2192]
2. cartilaginous joint [Option ID = 2191]
3. collagenous joint [Option ID = 2189]
4. synovial joint [Option ID = 2190]
Correct Answer :-
synovial joint [Option ID = 2190]
The heaviest organelle in cell is:
[Question ID = 556]
1. Lysosomes [Option ID = 2223]
2. Ribosomes [Option ID = 2224]
3. Nucleus [Option ID = 2222]
4. Mitochondria [Option ID = 2221]
Correct Answer :-
Nucleus [Option ID = 2222]
Wallace?s line is present in between
[Question ID = 544]
1. Oriental and Australian regions [Option ID = 2173]
2. Palaearctic and Ethiopian regions [Option ID = 2176]
3. Neotropical and Nearctic regions [Option ID = 2175]
4. Ethiopian and Oriental regions [Option ID = 2174]
FirstRanker.com - FirstRanker's Choice
1)
2)
3)
4)
5)
DU MSc Zoology
Topic:- DU_J18_MSC_ZOO
Which of the following is NOT a characteristic of lakes suffering from organic pollution?
[Question ID = 582]
1. High microbial concentration [Option ID = 2325]
2. High biochemical oxygen demand [Option ID = 2327]
3. Low phosphate levels [Option ID = 2328]
4. Frequent algal blooms [Option ID = 2326]
Correct Answer :-
Low phosphate levels [Option ID = 2328]
Which of the following was probably absent at the time of origin of life ?
[Question ID = 546]
1. Oxygen [Option ID = 2182]
2. Hydrogen [Option ID = 2181]
3. Methane [Option ID = 2183]
4. Carbon dioxide [Option ID = 2184]
Correct Answer :-
Oxygen [Option ID = 2182]
Which of the following genotypes causes Klinefelter syndrome?
[Question ID = 530]
1. XYY [Option ID = 2120]
2. XO [Option ID = 2117]
3. XXY [Option ID = 2118]
4. XX [Option ID = 2119]
Correct Answer :-
XXY [Option ID = 2118]
Which of the following is wrong match for enzyme classification?
[Question ID = 601]
1. EC 2 ? Trasnferases [Option ID = 2402]
2. EC 3- Hydrolases [Option ID = 2403]
3. EC 1 - Oxidoreductases [Option ID = 2401]
4. EC 4- Ligases [Option ID = 2404]
Correct Answer :-
EC 4- Ligases [Option ID = 2404]
Which of the following is not a possible explanation for the rapid rate of evolution of beak shape in Darwin?s finches?
[Question ID = 614]
1. Strong selection pressure [Option ID = 2455]
2. Small population size [Option ID = 2456]
3. High mutation rate [Option ID = 2453]
4. High emigrations and immigration rate [Option ID = 2454]
Correct Answer :-
High mutation rate [Option ID = 2453]
6)
7)
8)
9)
10)
11)
Which of the following animals is primarily an ectotherm?
[Question ID = 542]
1. Hawk [Option ID = 2165]
2. Lizard [Option ID = 2166]
3. Elephant [Option ID = 2168]
4. Shrew [Option ID = 2167]
Correct Answer :-
Lizard [Option ID = 2166]
Which of the following technique was used by Messelon and Stahl to separate DNA labeled with 15
N
from 14
N
?
[Question ID = 609]
1. Ion-exchange chromatography [Option ID = 2436]
2. Molecular-sieve filtration chromatography [Option ID = 2435]
3. Agarose Gel electrophoresis [Option ID = 2434]
4. CsCl density gradient centrifugation [Option ID = 2433]
Correct Answer :-
CsCl density gradient centrifugation [Option ID = 2433]
Which of the following molecule is most abundant in living system?
[Question ID = 608]
1. Water [Option ID = 2432]
2. Cellulose [Option ID = 2430]
3. Protein [Option ID = 2429]
4. Starch [Option ID = 2431]
Correct Answer :-
Water [Option ID = 2432]
Which system is active under stress?
[Question ID = 536]
1. Sympathetic nervous system [Option ID = 2142]
2. Somatic nervous system [Option ID = 2143]
3. Parasympathetic nervous system [Option ID = 2141]
4. Complete autonomic nervous system [Option ID = 2144]
Correct Answer :-
Sympathetic nervous system [Option ID = 2142]
Which is the first National park established in India:
[Question ID = 583]
1. Jim Corbet National Park [Option ID = 2329]
2. Periyar National Park [Option ID = 2332]
3. Kanziranga National Park [Option ID = 2330]
4. Kanha National Park [Option ID = 2331]
Correct Answer :-
Jim Corbet National Park [Option ID = 2329]
Doubling time for E. coli is 20 min. If the initial number of bacterium in a culture is 100, what would be number of bacterium after 60
min. [Question ID = 606]
1. 300 [Option ID = 2422]
2. 400 [Option ID = 2423]
3. 100 [Option ID = 2421]
4. 800 [Option ID = 2424]
12)
13)
14)
15)
16)
17)
Correct Answer :-
800 [Option ID = 2424]
X-chromosome inactivation
[Question ID = 527]
1. Is the cause of the y chromosome being genetically inactive [Option ID = 2106]
2. Takes place in humans so that the same X chromosome is inactive in all the cells of a female [Option ID = 2107]
3. Normally takes place in males but not in females [Option ID = 2105]
4. Results in genetically turning off one of the two X chromosome in female mammals [Option ID = 2108]
Correct Answer :-
Results in genetically turning off one of the two X chromosome in female mammals [Option ID = 2108]
In ecological succession from pioneer to climax community, the biomass shall:
[Question ID = 584]
1. Increase and then decrease [Option ID = 2334]
2. Increase continuously [Option ID = 2336]
3. Decrease [Option ID = 2333]
4. No relation [Option ID = 2335]
Correct Answer :-
Increase continuously [Option ID = 2336]
Import of glucose by the liver cell:
[Question ID = 569]
1. Is dependent on hydrolysis of ATP [Option ID = 2273]
2. Is facilitated by GLUT2 [Option ID = 2276]
3. Occurs throughout the phospholipid bilayer [Option ID = 2275]
4. Requires expression of GLUT1 on the plasma membrane [Option ID = 2274]
Correct Answer :-
Is facilitated by GLUT2 [Option ID = 2276]
The origin of the jaw in the gnathostomes is the
[Question ID = 524]
1. hyoid [Option ID = 2096]
2. gill arch [Option ID = 2093]
3. notochord [Option ID = 2095]
4. bones supporting the cranium [Option ID = 2094]
Correct Answer :-
gill arch [Option ID = 2093]
The dynamics of which cytoskeletal element changes in a moving amoeba?
[Question ID = 568]
1. Intermediate filaments [Option ID = 2271]
2. MreB [Option ID = 2272]
3. Microtubules [Option ID = 2269]
4. Microfilaments [Option ID = 2270]
Correct Answer :-
Microfilaments [Option ID = 2270]
Repeat core sequences consisting of 2, 3, or 4 base pairs are known as what?
[Question ID = 531]
18)
19)
20)
21)
22)
1. Single nucleotide polymorphisms (SNPs) [Option ID = 2121]
2. Minisatellites [Option ID = 2123]
3. Telomeres [Option ID = 2124]
4. Microsatellites [Option ID = 2122]
Correct Answer :-
Microsatellites [Option ID = 2122]
A haltere is a
[Question ID = 551]
1. Device used by a male insect to attract female for mating [Option ID = 2204]
2. balancing organ of housefly [Option ID = 2203]
3. sense organ of butterfly [Option ID = 2201]
4. modified forewing of beetle [Option ID = 2202]
Correct Answer :-
balancing organ of housefly [Option ID = 2203]
Linolenic (C18: 9,12,15) is an essential fatty acid for human because:
[Question ID = 555]
1. Lenolenic acid is available in fruits [Option ID = 2217]
2. Lenolenic acid gives much energy that palmitic acid [Option ID = 2219]
3. It is unsaturated fatty acid [Option ID = 2220]
4. Human cannot introduce double bond beyond 9-10 carbon of fatty acids [Option ID = 2218]
Correct Answer :-
Human cannot introduce double bond beyond 9-10 carbon of fatty acids [Option ID = 2218]
Passive immunity is obtained by:
[Question ID = 589]
1. Injecting the serum of another animal/individual containing antitoxin [Option ID = 2354]
2. Our own body cells preparing antibodies [Option ID = 2353]
3. Blood transfusion and blood clotting [Option ID = 2356]
4. Drinking medicinal concoctions [Option ID = 2355]
Correct Answer :-
Injecting the serum of another animal/individual containing antitoxin [Option ID = 2354]
2-amino-3 hydroxy propionic acid is the chemical name for which of the following amino acid:
[Question ID = 580]
1. serine [Option ID = 2320]
2. valine [Option ID = 2319]
3. glycine [Option ID = 2317]
4. alanine [Option ID = 2318]
Correct Answer :-
serine [Option ID = 2320]
Low pH of the lysosomal compartment is maintained by
[Question ID = 613]
1. Glycolysis [Option ID = 2452]
2. Electron transport chain [Option ID = 2449]
3. Proton ATPase at the membrane [Option ID = 2450]
4. Luminal acid production [Option ID = 2451]
Correct Answer :-
Proton ATPase at the membrane [Option ID = 2450]
23)
24)
25)
26)
27)
28)
Kidney of the vertebrate embryo develops from:
[Question ID = 591]
1. Mesoderm [Option ID = 2363]
2. Archenteron [Option ID = 2364]
3. Endoderm [Option ID = 2362]
4. Ectoderm [Option ID = 2361]
Correct Answer :-
Mesoderm [Option ID = 2363]
DNA is genetic material in
[Question ID = 563]
1. Only eukaryotes [Option ID = 2251]
2. Only Prokaryotes and eukaryotes [Option ID = 2250]
3. All viruses, prokaryotes, eukaryotes [Option ID = 2249]
4. Some viruses, all prokaryotes and eukaryotes [Option ID = 2252]
Correct Answer :-
Some viruses, all prokaryotes and eukaryotes [Option ID = 2252]
Which of the following statement is NOT TRUE for a competitive inhibitor in an enzyme catalysed reaction?
[Question ID = 600]
1. Their inhibition can be reversed by increasing the substrate concentration [Option ID = 2400]
2. They compete with substrate for binding to the active site. [Option ID = 2398]
3. They are structural analogues of the substrate. [Option ID = 2397]
4. They increase the Km, and decrease the Vmax. [Option ID = 2399]
Correct Answer :-
They increase the Km, and decrease the Vmax. [Option ID = 2399]
Knee joint is a
[Question ID = 548]
1. fibrous joint [Option ID = 2192]
2. cartilaginous joint [Option ID = 2191]
3. collagenous joint [Option ID = 2189]
4. synovial joint [Option ID = 2190]
Correct Answer :-
synovial joint [Option ID = 2190]
The heaviest organelle in cell is:
[Question ID = 556]
1. Lysosomes [Option ID = 2223]
2. Ribosomes [Option ID = 2224]
3. Nucleus [Option ID = 2222]
4. Mitochondria [Option ID = 2221]
Correct Answer :-
Nucleus [Option ID = 2222]
Wallace?s line is present in between
[Question ID = 544]
1. Oriental and Australian regions [Option ID = 2173]
2. Palaearctic and Ethiopian regions [Option ID = 2176]
3. Neotropical and Nearctic regions [Option ID = 2175]
4. Ethiopian and Oriental regions [Option ID = 2174]
29)
30)
31)
32)
33)
34)
Correct Answer :-
Oriental and Australian regions [Option ID = 2173]
In bivalves, which structure secretes pearl?
[Question ID = 598]
1. Nacreous gland. [Option ID = 2392]
2. Nacreous layer [Option ID = 2391]
3. Prismatic layer [Option ID = 2390]
4. Periostracum layer [Option ID = 2389]
Correct Answer :-
Nacreous layer [Option ID = 2391]
Ampicillin inhibits:
[Question ID = 559]
1. Cell wall synthesis in bacterial cells [Option ID = 2236]
2. RNA synthesis in Bacterial cells [Option ID = 2234]
3. DNA synthesis in bacterial cells [Option ID = 2233]
4. Protein synthesis in mammalian cell [Option ID = 2235]
Correct Answer :-
Cell wall synthesis in bacterial cells [Option ID = 2236]
Hiccups can be best described as ___________.
[Question ID = 534]
1. sign of somebody remembering you [Option ID = 2136]
2. vibration of the soft palate during breathing while sleeping [Option ID = 2135]
3. jerky incomplete inspiration [Option ID = 2134]
4. forceful sudden expiration [Option ID = 2133]
Correct Answer :-
jerky incomplete inspiration [Option ID = 2134]
At Isoelectric pH the charge on protein is:
[Question ID = 553]
1. Positive charge on protein [Option ID = 2210]
2. Negative charge on protein [Option ID = 2211]
3. No charge on protein [Option ID = 2209]
4. Net charge on protein is zero [Option ID = 2212]
Correct Answer :-
Net charge on protein is zero [Option ID = 2212]
Lac is a material which is
[Question ID = 552]
1. hardened fecal matter of lac insect [Option ID = 2205]
2. protective secretion deposited by female lac insect [Option ID = 2206]
3. protective covering secreted by larva [Option ID = 2207]
4. resin secreted by the plant [Option ID = 2208]
Correct Answer :-
protective secretion deposited by female lac insect [Option ID = 2206]
Hardy-Weinberg?s law gives the concept of
[Question ID = 586]
FirstRanker.com - FirstRanker's Choice
1)
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3)
4)
5)
DU MSc Zoology
Topic:- DU_J18_MSC_ZOO
Which of the following is NOT a characteristic of lakes suffering from organic pollution?
[Question ID = 582]
1. High microbial concentration [Option ID = 2325]
2. High biochemical oxygen demand [Option ID = 2327]
3. Low phosphate levels [Option ID = 2328]
4. Frequent algal blooms [Option ID = 2326]
Correct Answer :-
Low phosphate levels [Option ID = 2328]
Which of the following was probably absent at the time of origin of life ?
[Question ID = 546]
1. Oxygen [Option ID = 2182]
2. Hydrogen [Option ID = 2181]
3. Methane [Option ID = 2183]
4. Carbon dioxide [Option ID = 2184]
Correct Answer :-
Oxygen [Option ID = 2182]
Which of the following genotypes causes Klinefelter syndrome?
[Question ID = 530]
1. XYY [Option ID = 2120]
2. XO [Option ID = 2117]
3. XXY [Option ID = 2118]
4. XX [Option ID = 2119]
Correct Answer :-
XXY [Option ID = 2118]
Which of the following is wrong match for enzyme classification?
[Question ID = 601]
1. EC 2 ? Trasnferases [Option ID = 2402]
2. EC 3- Hydrolases [Option ID = 2403]
3. EC 1 - Oxidoreductases [Option ID = 2401]
4. EC 4- Ligases [Option ID = 2404]
Correct Answer :-
EC 4- Ligases [Option ID = 2404]
Which of the following is not a possible explanation for the rapid rate of evolution of beak shape in Darwin?s finches?
[Question ID = 614]
1. Strong selection pressure [Option ID = 2455]
2. Small population size [Option ID = 2456]
3. High mutation rate [Option ID = 2453]
4. High emigrations and immigration rate [Option ID = 2454]
Correct Answer :-
High mutation rate [Option ID = 2453]
6)
7)
8)
9)
10)
11)
Which of the following animals is primarily an ectotherm?
[Question ID = 542]
1. Hawk [Option ID = 2165]
2. Lizard [Option ID = 2166]
3. Elephant [Option ID = 2168]
4. Shrew [Option ID = 2167]
Correct Answer :-
Lizard [Option ID = 2166]
Which of the following technique was used by Messelon and Stahl to separate DNA labeled with 15
N
from 14
N
?
[Question ID = 609]
1. Ion-exchange chromatography [Option ID = 2436]
2. Molecular-sieve filtration chromatography [Option ID = 2435]
3. Agarose Gel electrophoresis [Option ID = 2434]
4. CsCl density gradient centrifugation [Option ID = 2433]
Correct Answer :-
CsCl density gradient centrifugation [Option ID = 2433]
Which of the following molecule is most abundant in living system?
[Question ID = 608]
1. Water [Option ID = 2432]
2. Cellulose [Option ID = 2430]
3. Protein [Option ID = 2429]
4. Starch [Option ID = 2431]
Correct Answer :-
Water [Option ID = 2432]
Which system is active under stress?
[Question ID = 536]
1. Sympathetic nervous system [Option ID = 2142]
2. Somatic nervous system [Option ID = 2143]
3. Parasympathetic nervous system [Option ID = 2141]
4. Complete autonomic nervous system [Option ID = 2144]
Correct Answer :-
Sympathetic nervous system [Option ID = 2142]
Which is the first National park established in India:
[Question ID = 583]
1. Jim Corbet National Park [Option ID = 2329]
2. Periyar National Park [Option ID = 2332]
3. Kanziranga National Park [Option ID = 2330]
4. Kanha National Park [Option ID = 2331]
Correct Answer :-
Jim Corbet National Park [Option ID = 2329]
Doubling time for E. coli is 20 min. If the initial number of bacterium in a culture is 100, what would be number of bacterium after 60
min. [Question ID = 606]
1. 300 [Option ID = 2422]
2. 400 [Option ID = 2423]
3. 100 [Option ID = 2421]
4. 800 [Option ID = 2424]
12)
13)
14)
15)
16)
17)
Correct Answer :-
800 [Option ID = 2424]
X-chromosome inactivation
[Question ID = 527]
1. Is the cause of the y chromosome being genetically inactive [Option ID = 2106]
2. Takes place in humans so that the same X chromosome is inactive in all the cells of a female [Option ID = 2107]
3. Normally takes place in males but not in females [Option ID = 2105]
4. Results in genetically turning off one of the two X chromosome in female mammals [Option ID = 2108]
Correct Answer :-
Results in genetically turning off one of the two X chromosome in female mammals [Option ID = 2108]
In ecological succession from pioneer to climax community, the biomass shall:
[Question ID = 584]
1. Increase and then decrease [Option ID = 2334]
2. Increase continuously [Option ID = 2336]
3. Decrease [Option ID = 2333]
4. No relation [Option ID = 2335]
Correct Answer :-
Increase continuously [Option ID = 2336]
Import of glucose by the liver cell:
[Question ID = 569]
1. Is dependent on hydrolysis of ATP [Option ID = 2273]
2. Is facilitated by GLUT2 [Option ID = 2276]
3. Occurs throughout the phospholipid bilayer [Option ID = 2275]
4. Requires expression of GLUT1 on the plasma membrane [Option ID = 2274]
Correct Answer :-
Is facilitated by GLUT2 [Option ID = 2276]
The origin of the jaw in the gnathostomes is the
[Question ID = 524]
1. hyoid [Option ID = 2096]
2. gill arch [Option ID = 2093]
3. notochord [Option ID = 2095]
4. bones supporting the cranium [Option ID = 2094]
Correct Answer :-
gill arch [Option ID = 2093]
The dynamics of which cytoskeletal element changes in a moving amoeba?
[Question ID = 568]
1. Intermediate filaments [Option ID = 2271]
2. MreB [Option ID = 2272]
3. Microtubules [Option ID = 2269]
4. Microfilaments [Option ID = 2270]
Correct Answer :-
Microfilaments [Option ID = 2270]
Repeat core sequences consisting of 2, 3, or 4 base pairs are known as what?
[Question ID = 531]
18)
19)
20)
21)
22)
1. Single nucleotide polymorphisms (SNPs) [Option ID = 2121]
2. Minisatellites [Option ID = 2123]
3. Telomeres [Option ID = 2124]
4. Microsatellites [Option ID = 2122]
Correct Answer :-
Microsatellites [Option ID = 2122]
A haltere is a
[Question ID = 551]
1. Device used by a male insect to attract female for mating [Option ID = 2204]
2. balancing organ of housefly [Option ID = 2203]
3. sense organ of butterfly [Option ID = 2201]
4. modified forewing of beetle [Option ID = 2202]
Correct Answer :-
balancing organ of housefly [Option ID = 2203]
Linolenic (C18: 9,12,15) is an essential fatty acid for human because:
[Question ID = 555]
1. Lenolenic acid is available in fruits [Option ID = 2217]
2. Lenolenic acid gives much energy that palmitic acid [Option ID = 2219]
3. It is unsaturated fatty acid [Option ID = 2220]
4. Human cannot introduce double bond beyond 9-10 carbon of fatty acids [Option ID = 2218]
Correct Answer :-
Human cannot introduce double bond beyond 9-10 carbon of fatty acids [Option ID = 2218]
Passive immunity is obtained by:
[Question ID = 589]
1. Injecting the serum of another animal/individual containing antitoxin [Option ID = 2354]
2. Our own body cells preparing antibodies [Option ID = 2353]
3. Blood transfusion and blood clotting [Option ID = 2356]
4. Drinking medicinal concoctions [Option ID = 2355]
Correct Answer :-
Injecting the serum of another animal/individual containing antitoxin [Option ID = 2354]
2-amino-3 hydroxy propionic acid is the chemical name for which of the following amino acid:
[Question ID = 580]
1. serine [Option ID = 2320]
2. valine [Option ID = 2319]
3. glycine [Option ID = 2317]
4. alanine [Option ID = 2318]
Correct Answer :-
serine [Option ID = 2320]
Low pH of the lysosomal compartment is maintained by
[Question ID = 613]
1. Glycolysis [Option ID = 2452]
2. Electron transport chain [Option ID = 2449]
3. Proton ATPase at the membrane [Option ID = 2450]
4. Luminal acid production [Option ID = 2451]
Correct Answer :-
Proton ATPase at the membrane [Option ID = 2450]
23)
24)
25)
26)
27)
28)
Kidney of the vertebrate embryo develops from:
[Question ID = 591]
1. Mesoderm [Option ID = 2363]
2. Archenteron [Option ID = 2364]
3. Endoderm [Option ID = 2362]
4. Ectoderm [Option ID = 2361]
Correct Answer :-
Mesoderm [Option ID = 2363]
DNA is genetic material in
[Question ID = 563]
1. Only eukaryotes [Option ID = 2251]
2. Only Prokaryotes and eukaryotes [Option ID = 2250]
3. All viruses, prokaryotes, eukaryotes [Option ID = 2249]
4. Some viruses, all prokaryotes and eukaryotes [Option ID = 2252]
Correct Answer :-
Some viruses, all prokaryotes and eukaryotes [Option ID = 2252]
Which of the following statement is NOT TRUE for a competitive inhibitor in an enzyme catalysed reaction?
[Question ID = 600]
1. Their inhibition can be reversed by increasing the substrate concentration [Option ID = 2400]
2. They compete with substrate for binding to the active site. [Option ID = 2398]
3. They are structural analogues of the substrate. [Option ID = 2397]
4. They increase the Km, and decrease the Vmax. [Option ID = 2399]
Correct Answer :-
They increase the Km, and decrease the Vmax. [Option ID = 2399]
Knee joint is a
[Question ID = 548]
1. fibrous joint [Option ID = 2192]
2. cartilaginous joint [Option ID = 2191]
3. collagenous joint [Option ID = 2189]
4. synovial joint [Option ID = 2190]
Correct Answer :-
synovial joint [Option ID = 2190]
The heaviest organelle in cell is:
[Question ID = 556]
1. Lysosomes [Option ID = 2223]
2. Ribosomes [Option ID = 2224]
3. Nucleus [Option ID = 2222]
4. Mitochondria [Option ID = 2221]
Correct Answer :-
Nucleus [Option ID = 2222]
Wallace?s line is present in between
[Question ID = 544]
1. Oriental and Australian regions [Option ID = 2173]
2. Palaearctic and Ethiopian regions [Option ID = 2176]
3. Neotropical and Nearctic regions [Option ID = 2175]
4. Ethiopian and Oriental regions [Option ID = 2174]
29)
30)
31)
32)
33)
34)
Correct Answer :-
Oriental and Australian regions [Option ID = 2173]
In bivalves, which structure secretes pearl?
[Question ID = 598]
1. Nacreous gland. [Option ID = 2392]
2. Nacreous layer [Option ID = 2391]
3. Prismatic layer [Option ID = 2390]
4. Periostracum layer [Option ID = 2389]
Correct Answer :-
Nacreous layer [Option ID = 2391]
Ampicillin inhibits:
[Question ID = 559]
1. Cell wall synthesis in bacterial cells [Option ID = 2236]
2. RNA synthesis in Bacterial cells [Option ID = 2234]
3. DNA synthesis in bacterial cells [Option ID = 2233]
4. Protein synthesis in mammalian cell [Option ID = 2235]
Correct Answer :-
Cell wall synthesis in bacterial cells [Option ID = 2236]
Hiccups can be best described as ___________.
[Question ID = 534]
1. sign of somebody remembering you [Option ID = 2136]
2. vibration of the soft palate during breathing while sleeping [Option ID = 2135]
3. jerky incomplete inspiration [Option ID = 2134]
4. forceful sudden expiration [Option ID = 2133]
Correct Answer :-
jerky incomplete inspiration [Option ID = 2134]
At Isoelectric pH the charge on protein is:
[Question ID = 553]
1. Positive charge on protein [Option ID = 2210]
2. Negative charge on protein [Option ID = 2211]
3. No charge on protein [Option ID = 2209]
4. Net charge on protein is zero [Option ID = 2212]
Correct Answer :-
Net charge on protein is zero [Option ID = 2212]
Lac is a material which is
[Question ID = 552]
1. hardened fecal matter of lac insect [Option ID = 2205]
2. protective secretion deposited by female lac insect [Option ID = 2206]
3. protective covering secreted by larva [Option ID = 2207]
4. resin secreted by the plant [Option ID = 2208]
Correct Answer :-
protective secretion deposited by female lac insect [Option ID = 2206]
Hardy-Weinberg?s law gives the concept of
[Question ID = 586]
35)
36)
37)
38)
39)
1. natural selection. [Option ID = 2344]
2. genetic drift [Option ID = 2341]
3. genetic equilibrium [Option ID = 2343]
4. mutation [Option ID = 2342]
Correct Answer :-
genetic equilibrium [Option ID = 2343]
The vertical migration of plankton is an instance of
[Question ID = 579]
1. Circadian rythmes [Option ID = 2313]
2. Circannual rythmes [Option ID = 2314]
3. photopriodism [Option ID = 2315]
4. photokinesis. [Option ID = 2316]
Correct Answer :-
Circadian rythmes [Option ID = 2313]
Treadmilling of actin filaments in the steady state occurs at G-actin concentration
[Question ID = 565]
1. Below the Cc of the (-) end [Option ID = 2257]
2. Above the Cc of the (-) end but below the Cc of the (+) end [Option ID = 2259]
3. Above the Cc of the (+) end but below the Cc of the (-) end [Option ID = 2260]
4. Above the Cc of the (+) end [Option ID = 2258]
Correct Answer :-
Above the Cc of the (+) end but below the Cc of the (-) end [Option ID = 2260]
Exon skipping is associated with:
[Question ID = 528]
1. regulatory mutations [Option ID = 2110]
2. RNA processing mutations [Option ID = 2111]
3. nonsense mutations [Option ID = 2109]
4. silent mutations [Option ID = 2112]
Correct Answer :-
RNA processing mutations [Option ID = 2111]
Bile is produced in our body which
[Question ID = 557]
1. Act as a surfactant to emulsify lipids in intestine. [Option ID = 2226]
2. It has no role associated with our body [Option ID = 2228]
3. Helps in digestion of starch in intestinbe [Option ID = 2227]
4. Helps in controlling blood pressure [Option ID = 2225]
Correct Answer :-
Act as a surfactant to emulsify lipids in intestine. [Option ID = 2226]
The inner cell mass of mammalian blastocyst develops into,
[Question ID = 578]
1. all embryonic structures [Option ID = 2311]
2. embryonic endoderm [Option ID = 2309]
3. chorio-allantoic placenta [Option ID = 2312]
4. yolk-sac placenta [Option ID = 2310]
Correct Answer :-
all embryonic structures [Option ID = 2311]
FirstRanker.com - FirstRanker's Choice
1)
2)
3)
4)
5)
DU MSc Zoology
Topic:- DU_J18_MSC_ZOO
Which of the following is NOT a characteristic of lakes suffering from organic pollution?
[Question ID = 582]
1. High microbial concentration [Option ID = 2325]
2. High biochemical oxygen demand [Option ID = 2327]
3. Low phosphate levels [Option ID = 2328]
4. Frequent algal blooms [Option ID = 2326]
Correct Answer :-
Low phosphate levels [Option ID = 2328]
Which of the following was probably absent at the time of origin of life ?
[Question ID = 546]
1. Oxygen [Option ID = 2182]
2. Hydrogen [Option ID = 2181]
3. Methane [Option ID = 2183]
4. Carbon dioxide [Option ID = 2184]
Correct Answer :-
Oxygen [Option ID = 2182]
Which of the following genotypes causes Klinefelter syndrome?
[Question ID = 530]
1. XYY [Option ID = 2120]
2. XO [Option ID = 2117]
3. XXY [Option ID = 2118]
4. XX [Option ID = 2119]
Correct Answer :-
XXY [Option ID = 2118]
Which of the following is wrong match for enzyme classification?
[Question ID = 601]
1. EC 2 ? Trasnferases [Option ID = 2402]
2. EC 3- Hydrolases [Option ID = 2403]
3. EC 1 - Oxidoreductases [Option ID = 2401]
4. EC 4- Ligases [Option ID = 2404]
Correct Answer :-
EC 4- Ligases [Option ID = 2404]
Which of the following is not a possible explanation for the rapid rate of evolution of beak shape in Darwin?s finches?
[Question ID = 614]
1. Strong selection pressure [Option ID = 2455]
2. Small population size [Option ID = 2456]
3. High mutation rate [Option ID = 2453]
4. High emigrations and immigration rate [Option ID = 2454]
Correct Answer :-
High mutation rate [Option ID = 2453]
6)
7)
8)
9)
10)
11)
Which of the following animals is primarily an ectotherm?
[Question ID = 542]
1. Hawk [Option ID = 2165]
2. Lizard [Option ID = 2166]
3. Elephant [Option ID = 2168]
4. Shrew [Option ID = 2167]
Correct Answer :-
Lizard [Option ID = 2166]
Which of the following technique was used by Messelon and Stahl to separate DNA labeled with 15
N
from 14
N
?
[Question ID = 609]
1. Ion-exchange chromatography [Option ID = 2436]
2. Molecular-sieve filtration chromatography [Option ID = 2435]
3. Agarose Gel electrophoresis [Option ID = 2434]
4. CsCl density gradient centrifugation [Option ID = 2433]
Correct Answer :-
CsCl density gradient centrifugation [Option ID = 2433]
Which of the following molecule is most abundant in living system?
[Question ID = 608]
1. Water [Option ID = 2432]
2. Cellulose [Option ID = 2430]
3. Protein [Option ID = 2429]
4. Starch [Option ID = 2431]
Correct Answer :-
Water [Option ID = 2432]
Which system is active under stress?
[Question ID = 536]
1. Sympathetic nervous system [Option ID = 2142]
2. Somatic nervous system [Option ID = 2143]
3. Parasympathetic nervous system [Option ID = 2141]
4. Complete autonomic nervous system [Option ID = 2144]
Correct Answer :-
Sympathetic nervous system [Option ID = 2142]
Which is the first National park established in India:
[Question ID = 583]
1. Jim Corbet National Park [Option ID = 2329]
2. Periyar National Park [Option ID = 2332]
3. Kanziranga National Park [Option ID = 2330]
4. Kanha National Park [Option ID = 2331]
Correct Answer :-
Jim Corbet National Park [Option ID = 2329]
Doubling time for E. coli is 20 min. If the initial number of bacterium in a culture is 100, what would be number of bacterium after 60
min. [Question ID = 606]
1. 300 [Option ID = 2422]
2. 400 [Option ID = 2423]
3. 100 [Option ID = 2421]
4. 800 [Option ID = 2424]
12)
13)
14)
15)
16)
17)
Correct Answer :-
800 [Option ID = 2424]
X-chromosome inactivation
[Question ID = 527]
1. Is the cause of the y chromosome being genetically inactive [Option ID = 2106]
2. Takes place in humans so that the same X chromosome is inactive in all the cells of a female [Option ID = 2107]
3. Normally takes place in males but not in females [Option ID = 2105]
4. Results in genetically turning off one of the two X chromosome in female mammals [Option ID = 2108]
Correct Answer :-
Results in genetically turning off one of the two X chromosome in female mammals [Option ID = 2108]
In ecological succession from pioneer to climax community, the biomass shall:
[Question ID = 584]
1. Increase and then decrease [Option ID = 2334]
2. Increase continuously [Option ID = 2336]
3. Decrease [Option ID = 2333]
4. No relation [Option ID = 2335]
Correct Answer :-
Increase continuously [Option ID = 2336]
Import of glucose by the liver cell:
[Question ID = 569]
1. Is dependent on hydrolysis of ATP [Option ID = 2273]
2. Is facilitated by GLUT2 [Option ID = 2276]
3. Occurs throughout the phospholipid bilayer [Option ID = 2275]
4. Requires expression of GLUT1 on the plasma membrane [Option ID = 2274]
Correct Answer :-
Is facilitated by GLUT2 [Option ID = 2276]
The origin of the jaw in the gnathostomes is the
[Question ID = 524]
1. hyoid [Option ID = 2096]
2. gill arch [Option ID = 2093]
3. notochord [Option ID = 2095]
4. bones supporting the cranium [Option ID = 2094]
Correct Answer :-
gill arch [Option ID = 2093]
The dynamics of which cytoskeletal element changes in a moving amoeba?
[Question ID = 568]
1. Intermediate filaments [Option ID = 2271]
2. MreB [Option ID = 2272]
3. Microtubules [Option ID = 2269]
4. Microfilaments [Option ID = 2270]
Correct Answer :-
Microfilaments [Option ID = 2270]
Repeat core sequences consisting of 2, 3, or 4 base pairs are known as what?
[Question ID = 531]
18)
19)
20)
21)
22)
1. Single nucleotide polymorphisms (SNPs) [Option ID = 2121]
2. Minisatellites [Option ID = 2123]
3. Telomeres [Option ID = 2124]
4. Microsatellites [Option ID = 2122]
Correct Answer :-
Microsatellites [Option ID = 2122]
A haltere is a
[Question ID = 551]
1. Device used by a male insect to attract female for mating [Option ID = 2204]
2. balancing organ of housefly [Option ID = 2203]
3. sense organ of butterfly [Option ID = 2201]
4. modified forewing of beetle [Option ID = 2202]
Correct Answer :-
balancing organ of housefly [Option ID = 2203]
Linolenic (C18: 9,12,15) is an essential fatty acid for human because:
[Question ID = 555]
1. Lenolenic acid is available in fruits [Option ID = 2217]
2. Lenolenic acid gives much energy that palmitic acid [Option ID = 2219]
3. It is unsaturated fatty acid [Option ID = 2220]
4. Human cannot introduce double bond beyond 9-10 carbon of fatty acids [Option ID = 2218]
Correct Answer :-
Human cannot introduce double bond beyond 9-10 carbon of fatty acids [Option ID = 2218]
Passive immunity is obtained by:
[Question ID = 589]
1. Injecting the serum of another animal/individual containing antitoxin [Option ID = 2354]
2. Our own body cells preparing antibodies [Option ID = 2353]
3. Blood transfusion and blood clotting [Option ID = 2356]
4. Drinking medicinal concoctions [Option ID = 2355]
Correct Answer :-
Injecting the serum of another animal/individual containing antitoxin [Option ID = 2354]
2-amino-3 hydroxy propionic acid is the chemical name for which of the following amino acid:
[Question ID = 580]
1. serine [Option ID = 2320]
2. valine [Option ID = 2319]
3. glycine [Option ID = 2317]
4. alanine [Option ID = 2318]
Correct Answer :-
serine [Option ID = 2320]
Low pH of the lysosomal compartment is maintained by
[Question ID = 613]
1. Glycolysis [Option ID = 2452]
2. Electron transport chain [Option ID = 2449]
3. Proton ATPase at the membrane [Option ID = 2450]
4. Luminal acid production [Option ID = 2451]
Correct Answer :-
Proton ATPase at the membrane [Option ID = 2450]
23)
24)
25)
26)
27)
28)
Kidney of the vertebrate embryo develops from:
[Question ID = 591]
1. Mesoderm [Option ID = 2363]
2. Archenteron [Option ID = 2364]
3. Endoderm [Option ID = 2362]
4. Ectoderm [Option ID = 2361]
Correct Answer :-
Mesoderm [Option ID = 2363]
DNA is genetic material in
[Question ID = 563]
1. Only eukaryotes [Option ID = 2251]
2. Only Prokaryotes and eukaryotes [Option ID = 2250]
3. All viruses, prokaryotes, eukaryotes [Option ID = 2249]
4. Some viruses, all prokaryotes and eukaryotes [Option ID = 2252]
Correct Answer :-
Some viruses, all prokaryotes and eukaryotes [Option ID = 2252]
Which of the following statement is NOT TRUE for a competitive inhibitor in an enzyme catalysed reaction?
[Question ID = 600]
1. Their inhibition can be reversed by increasing the substrate concentration [Option ID = 2400]
2. They compete with substrate for binding to the active site. [Option ID = 2398]
3. They are structural analogues of the substrate. [Option ID = 2397]
4. They increase the Km, and decrease the Vmax. [Option ID = 2399]
Correct Answer :-
They increase the Km, and decrease the Vmax. [Option ID = 2399]
Knee joint is a
[Question ID = 548]
1. fibrous joint [Option ID = 2192]
2. cartilaginous joint [Option ID = 2191]
3. collagenous joint [Option ID = 2189]
4. synovial joint [Option ID = 2190]
Correct Answer :-
synovial joint [Option ID = 2190]
The heaviest organelle in cell is:
[Question ID = 556]
1. Lysosomes [Option ID = 2223]
2. Ribosomes [Option ID = 2224]
3. Nucleus [Option ID = 2222]
4. Mitochondria [Option ID = 2221]
Correct Answer :-
Nucleus [Option ID = 2222]
Wallace?s line is present in between
[Question ID = 544]
1. Oriental and Australian regions [Option ID = 2173]
2. Palaearctic and Ethiopian regions [Option ID = 2176]
3. Neotropical and Nearctic regions [Option ID = 2175]
4. Ethiopian and Oriental regions [Option ID = 2174]
29)
30)
31)
32)
33)
34)
Correct Answer :-
Oriental and Australian regions [Option ID = 2173]
In bivalves, which structure secretes pearl?
[Question ID = 598]
1. Nacreous gland. [Option ID = 2392]
2. Nacreous layer [Option ID = 2391]
3. Prismatic layer [Option ID = 2390]
4. Periostracum layer [Option ID = 2389]
Correct Answer :-
Nacreous layer [Option ID = 2391]
Ampicillin inhibits:
[Question ID = 559]
1. Cell wall synthesis in bacterial cells [Option ID = 2236]
2. RNA synthesis in Bacterial cells [Option ID = 2234]
3. DNA synthesis in bacterial cells [Option ID = 2233]
4. Protein synthesis in mammalian cell [Option ID = 2235]
Correct Answer :-
Cell wall synthesis in bacterial cells [Option ID = 2236]
Hiccups can be best described as ___________.
[Question ID = 534]
1. sign of somebody remembering you [Option ID = 2136]
2. vibration of the soft palate during breathing while sleeping [Option ID = 2135]
3. jerky incomplete inspiration [Option ID = 2134]
4. forceful sudden expiration [Option ID = 2133]
Correct Answer :-
jerky incomplete inspiration [Option ID = 2134]
At Isoelectric pH the charge on protein is:
[Question ID = 553]
1. Positive charge on protein [Option ID = 2210]
2. Negative charge on protein [Option ID = 2211]
3. No charge on protein [Option ID = 2209]
4. Net charge on protein is zero [Option ID = 2212]
Correct Answer :-
Net charge on protein is zero [Option ID = 2212]
Lac is a material which is
[Question ID = 552]
1. hardened fecal matter of lac insect [Option ID = 2205]
2. protective secretion deposited by female lac insect [Option ID = 2206]
3. protective covering secreted by larva [Option ID = 2207]
4. resin secreted by the plant [Option ID = 2208]
Correct Answer :-
protective secretion deposited by female lac insect [Option ID = 2206]
Hardy-Weinberg?s law gives the concept of
[Question ID = 586]
35)
36)
37)
38)
39)
1. natural selection. [Option ID = 2344]
2. genetic drift [Option ID = 2341]
3. genetic equilibrium [Option ID = 2343]
4. mutation [Option ID = 2342]
Correct Answer :-
genetic equilibrium [Option ID = 2343]
The vertical migration of plankton is an instance of
[Question ID = 579]
1. Circadian rythmes [Option ID = 2313]
2. Circannual rythmes [Option ID = 2314]
3. photopriodism [Option ID = 2315]
4. photokinesis. [Option ID = 2316]
Correct Answer :-
Circadian rythmes [Option ID = 2313]
Treadmilling of actin filaments in the steady state occurs at G-actin concentration
[Question ID = 565]
1. Below the Cc of the (-) end [Option ID = 2257]
2. Above the Cc of the (-) end but below the Cc of the (+) end [Option ID = 2259]
3. Above the Cc of the (+) end but below the Cc of the (-) end [Option ID = 2260]
4. Above the Cc of the (+) end [Option ID = 2258]
Correct Answer :-
Above the Cc of the (+) end but below the Cc of the (-) end [Option ID = 2260]
Exon skipping is associated with:
[Question ID = 528]
1. regulatory mutations [Option ID = 2110]
2. RNA processing mutations [Option ID = 2111]
3. nonsense mutations [Option ID = 2109]
4. silent mutations [Option ID = 2112]
Correct Answer :-
RNA processing mutations [Option ID = 2111]
Bile is produced in our body which
[Question ID = 557]
1. Act as a surfactant to emulsify lipids in intestine. [Option ID = 2226]
2. It has no role associated with our body [Option ID = 2228]
3. Helps in digestion of starch in intestinbe [Option ID = 2227]
4. Helps in controlling blood pressure [Option ID = 2225]
Correct Answer :-
Act as a surfactant to emulsify lipids in intestine. [Option ID = 2226]
The inner cell mass of mammalian blastocyst develops into,
[Question ID = 578]
1. all embryonic structures [Option ID = 2311]
2. embryonic endoderm [Option ID = 2309]
3. chorio-allantoic placenta [Option ID = 2312]
4. yolk-sac placenta [Option ID = 2310]
Correct Answer :-
all embryonic structures [Option ID = 2311]
40)
41)
42)
43)
44)
45)
The isoform/s of actin present in muscle cells
[Question ID = 566]
1. beta-actin [Option ID = 2263]
2. beta-and gamma-actin [Option ID = 2264]
3. alpha-actin [Option ID = 2261]
4. alpha and beta-actin [Option ID = 2262]
Correct Answer :-
alpha-actin [Option ID = 2261]
The four postulates of the Chemiosmotic hypothesis accounted for:
[Question ID = 574]
1. ETC, F1-F0 ATPase, cardiolipin and pmf generators [Option ID = 2295]
2. ETC, F1-F0 ATPase, cardiolipin and anion exchangers [Option ID = 2296]
3. Cardiolipin [Option ID = 2294]
4. The four complexes of the electron transport chain (ETC). [Option ID = 2293]
Correct Answer :-
ETC, F1-F0 ATPase, cardiolipin and anion exchangers [Option ID = 2296]
Cilia and flagella contains a contractile protein called:
[Question ID = 575]
1. Myosin [Option ID = 2300]
2. Tubulin [Option ID = 2298]
3. Actin [Option ID = 2299]
4. Dyenin [Option ID = 2297]
Correct Answer :-
Dyenin [Option ID = 2297]
Insects such as Drosophila undergo three molts before undergoing metamorphosis. Molting is controlled by which of the following
hormone?
[Question ID = 532]
1. juvenile hormone [Option ID = 2126]
2. growth hormone [Option ID = 2128]
3. auxin [Option ID = 2127]
4. ecdysone [Option ID = 2125]
Correct Answer :-
ecdysone [Option ID = 2125]
Injection of anti-venom to a patient for snake bite is an example of
[Question ID = 562]
1. Artificially acquired active immunity [Option ID = 2246]
2. Artificially acquired passive immunity [Option ID = 2248]
3. Naturally acquired active immunity [Option ID = 2245]
4. Naturally acquired passive immunity [Option ID = 2247]
Correct Answer :-
Artificially acquired passive immunity [Option ID = 2248]
Steroid hormones are synthesized from
[Question ID = 558]
1. Glycogen [Option ID = 2232]
2. Tryptophan [Option ID = 2229]
3. Stearic acid [Option ID = 2231]
4. Cholesterol [Option ID = 2230]
FirstRanker.com - FirstRanker's Choice
1)
2)
3)
4)
5)
DU MSc Zoology
Topic:- DU_J18_MSC_ZOO
Which of the following is NOT a characteristic of lakes suffering from organic pollution?
[Question ID = 582]
1. High microbial concentration [Option ID = 2325]
2. High biochemical oxygen demand [Option ID = 2327]
3. Low phosphate levels [Option ID = 2328]
4. Frequent algal blooms [Option ID = 2326]
Correct Answer :-
Low phosphate levels [Option ID = 2328]
Which of the following was probably absent at the time of origin of life ?
[Question ID = 546]
1. Oxygen [Option ID = 2182]
2. Hydrogen [Option ID = 2181]
3. Methane [Option ID = 2183]
4. Carbon dioxide [Option ID = 2184]
Correct Answer :-
Oxygen [Option ID = 2182]
Which of the following genotypes causes Klinefelter syndrome?
[Question ID = 530]
1. XYY [Option ID = 2120]
2. XO [Option ID = 2117]
3. XXY [Option ID = 2118]
4. XX [Option ID = 2119]
Correct Answer :-
XXY [Option ID = 2118]
Which of the following is wrong match for enzyme classification?
[Question ID = 601]
1. EC 2 ? Trasnferases [Option ID = 2402]
2. EC 3- Hydrolases [Option ID = 2403]
3. EC 1 - Oxidoreductases [Option ID = 2401]
4. EC 4- Ligases [Option ID = 2404]
Correct Answer :-
EC 4- Ligases [Option ID = 2404]
Which of the following is not a possible explanation for the rapid rate of evolution of beak shape in Darwin?s finches?
[Question ID = 614]
1. Strong selection pressure [Option ID = 2455]
2. Small population size [Option ID = 2456]
3. High mutation rate [Option ID = 2453]
4. High emigrations and immigration rate [Option ID = 2454]
Correct Answer :-
High mutation rate [Option ID = 2453]
6)
7)
8)
9)
10)
11)
Which of the following animals is primarily an ectotherm?
[Question ID = 542]
1. Hawk [Option ID = 2165]
2. Lizard [Option ID = 2166]
3. Elephant [Option ID = 2168]
4. Shrew [Option ID = 2167]
Correct Answer :-
Lizard [Option ID = 2166]
Which of the following technique was used by Messelon and Stahl to separate DNA labeled with 15
N
from 14
N
?
[Question ID = 609]
1. Ion-exchange chromatography [Option ID = 2436]
2. Molecular-sieve filtration chromatography [Option ID = 2435]
3. Agarose Gel electrophoresis [Option ID = 2434]
4. CsCl density gradient centrifugation [Option ID = 2433]
Correct Answer :-
CsCl density gradient centrifugation [Option ID = 2433]
Which of the following molecule is most abundant in living system?
[Question ID = 608]
1. Water [Option ID = 2432]
2. Cellulose [Option ID = 2430]
3. Protein [Option ID = 2429]
4. Starch [Option ID = 2431]
Correct Answer :-
Water [Option ID = 2432]
Which system is active under stress?
[Question ID = 536]
1. Sympathetic nervous system [Option ID = 2142]
2. Somatic nervous system [Option ID = 2143]
3. Parasympathetic nervous system [Option ID = 2141]
4. Complete autonomic nervous system [Option ID = 2144]
Correct Answer :-
Sympathetic nervous system [Option ID = 2142]
Which is the first National park established in India:
[Question ID = 583]
1. Jim Corbet National Park [Option ID = 2329]
2. Periyar National Park [Option ID = 2332]
3. Kanziranga National Park [Option ID = 2330]
4. Kanha National Park [Option ID = 2331]
Correct Answer :-
Jim Corbet National Park [Option ID = 2329]
Doubling time for E. coli is 20 min. If the initial number of bacterium in a culture is 100, what would be number of bacterium after 60
min. [Question ID = 606]
1. 300 [Option ID = 2422]
2. 400 [Option ID = 2423]
3. 100 [Option ID = 2421]
4. 800 [Option ID = 2424]
12)
13)
14)
15)
16)
17)
Correct Answer :-
800 [Option ID = 2424]
X-chromosome inactivation
[Question ID = 527]
1. Is the cause of the y chromosome being genetically inactive [Option ID = 2106]
2. Takes place in humans so that the same X chromosome is inactive in all the cells of a female [Option ID = 2107]
3. Normally takes place in males but not in females [Option ID = 2105]
4. Results in genetically turning off one of the two X chromosome in female mammals [Option ID = 2108]
Correct Answer :-
Results in genetically turning off one of the two X chromosome in female mammals [Option ID = 2108]
In ecological succession from pioneer to climax community, the biomass shall:
[Question ID = 584]
1. Increase and then decrease [Option ID = 2334]
2. Increase continuously [Option ID = 2336]
3. Decrease [Option ID = 2333]
4. No relation [Option ID = 2335]
Correct Answer :-
Increase continuously [Option ID = 2336]
Import of glucose by the liver cell:
[Question ID = 569]
1. Is dependent on hydrolysis of ATP [Option ID = 2273]
2. Is facilitated by GLUT2 [Option ID = 2276]
3. Occurs throughout the phospholipid bilayer [Option ID = 2275]
4. Requires expression of GLUT1 on the plasma membrane [Option ID = 2274]
Correct Answer :-
Is facilitated by GLUT2 [Option ID = 2276]
The origin of the jaw in the gnathostomes is the
[Question ID = 524]
1. hyoid [Option ID = 2096]
2. gill arch [Option ID = 2093]
3. notochord [Option ID = 2095]
4. bones supporting the cranium [Option ID = 2094]
Correct Answer :-
gill arch [Option ID = 2093]
The dynamics of which cytoskeletal element changes in a moving amoeba?
[Question ID = 568]
1. Intermediate filaments [Option ID = 2271]
2. MreB [Option ID = 2272]
3. Microtubules [Option ID = 2269]
4. Microfilaments [Option ID = 2270]
Correct Answer :-
Microfilaments [Option ID = 2270]
Repeat core sequences consisting of 2, 3, or 4 base pairs are known as what?
[Question ID = 531]
18)
19)
20)
21)
22)
1. Single nucleotide polymorphisms (SNPs) [Option ID = 2121]
2. Minisatellites [Option ID = 2123]
3. Telomeres [Option ID = 2124]
4. Microsatellites [Option ID = 2122]
Correct Answer :-
Microsatellites [Option ID = 2122]
A haltere is a
[Question ID = 551]
1. Device used by a male insect to attract female for mating [Option ID = 2204]
2. balancing organ of housefly [Option ID = 2203]
3. sense organ of butterfly [Option ID = 2201]
4. modified forewing of beetle [Option ID = 2202]
Correct Answer :-
balancing organ of housefly [Option ID = 2203]
Linolenic (C18: 9,12,15) is an essential fatty acid for human because:
[Question ID = 555]
1. Lenolenic acid is available in fruits [Option ID = 2217]
2. Lenolenic acid gives much energy that palmitic acid [Option ID = 2219]
3. It is unsaturated fatty acid [Option ID = 2220]
4. Human cannot introduce double bond beyond 9-10 carbon of fatty acids [Option ID = 2218]
Correct Answer :-
Human cannot introduce double bond beyond 9-10 carbon of fatty acids [Option ID = 2218]
Passive immunity is obtained by:
[Question ID = 589]
1. Injecting the serum of another animal/individual containing antitoxin [Option ID = 2354]
2. Our own body cells preparing antibodies [Option ID = 2353]
3. Blood transfusion and blood clotting [Option ID = 2356]
4. Drinking medicinal concoctions [Option ID = 2355]
Correct Answer :-
Injecting the serum of another animal/individual containing antitoxin [Option ID = 2354]
2-amino-3 hydroxy propionic acid is the chemical name for which of the following amino acid:
[Question ID = 580]
1. serine [Option ID = 2320]
2. valine [Option ID = 2319]
3. glycine [Option ID = 2317]
4. alanine [Option ID = 2318]
Correct Answer :-
serine [Option ID = 2320]
Low pH of the lysosomal compartment is maintained by
[Question ID = 613]
1. Glycolysis [Option ID = 2452]
2. Electron transport chain [Option ID = 2449]
3. Proton ATPase at the membrane [Option ID = 2450]
4. Luminal acid production [Option ID = 2451]
Correct Answer :-
Proton ATPase at the membrane [Option ID = 2450]
23)
24)
25)
26)
27)
28)
Kidney of the vertebrate embryo develops from:
[Question ID = 591]
1. Mesoderm [Option ID = 2363]
2. Archenteron [Option ID = 2364]
3. Endoderm [Option ID = 2362]
4. Ectoderm [Option ID = 2361]
Correct Answer :-
Mesoderm [Option ID = 2363]
DNA is genetic material in
[Question ID = 563]
1. Only eukaryotes [Option ID = 2251]
2. Only Prokaryotes and eukaryotes [Option ID = 2250]
3. All viruses, prokaryotes, eukaryotes [Option ID = 2249]
4. Some viruses, all prokaryotes and eukaryotes [Option ID = 2252]
Correct Answer :-
Some viruses, all prokaryotes and eukaryotes [Option ID = 2252]
Which of the following statement is NOT TRUE for a competitive inhibitor in an enzyme catalysed reaction?
[Question ID = 600]
1. Their inhibition can be reversed by increasing the substrate concentration [Option ID = 2400]
2. They compete with substrate for binding to the active site. [Option ID = 2398]
3. They are structural analogues of the substrate. [Option ID = 2397]
4. They increase the Km, and decrease the Vmax. [Option ID = 2399]
Correct Answer :-
They increase the Km, and decrease the Vmax. [Option ID = 2399]
Knee joint is a
[Question ID = 548]
1. fibrous joint [Option ID = 2192]
2. cartilaginous joint [Option ID = 2191]
3. collagenous joint [Option ID = 2189]
4. synovial joint [Option ID = 2190]
Correct Answer :-
synovial joint [Option ID = 2190]
The heaviest organelle in cell is:
[Question ID = 556]
1. Lysosomes [Option ID = 2223]
2. Ribosomes [Option ID = 2224]
3. Nucleus [Option ID = 2222]
4. Mitochondria [Option ID = 2221]
Correct Answer :-
Nucleus [Option ID = 2222]
Wallace?s line is present in between
[Question ID = 544]
1. Oriental and Australian regions [Option ID = 2173]
2. Palaearctic and Ethiopian regions [Option ID = 2176]
3. Neotropical and Nearctic regions [Option ID = 2175]
4. Ethiopian and Oriental regions [Option ID = 2174]
29)
30)
31)
32)
33)
34)
Correct Answer :-
Oriental and Australian regions [Option ID = 2173]
In bivalves, which structure secretes pearl?
[Question ID = 598]
1. Nacreous gland. [Option ID = 2392]
2. Nacreous layer [Option ID = 2391]
3. Prismatic layer [Option ID = 2390]
4. Periostracum layer [Option ID = 2389]
Correct Answer :-
Nacreous layer [Option ID = 2391]
Ampicillin inhibits:
[Question ID = 559]
1. Cell wall synthesis in bacterial cells [Option ID = 2236]
2. RNA synthesis in Bacterial cells [Option ID = 2234]
3. DNA synthesis in bacterial cells [Option ID = 2233]
4. Protein synthesis in mammalian cell [Option ID = 2235]
Correct Answer :-
Cell wall synthesis in bacterial cells [Option ID = 2236]
Hiccups can be best described as ___________.
[Question ID = 534]
1. sign of somebody remembering you [Option ID = 2136]
2. vibration of the soft palate during breathing while sleeping [Option ID = 2135]
3. jerky incomplete inspiration [Option ID = 2134]
4. forceful sudden expiration [Option ID = 2133]
Correct Answer :-
jerky incomplete inspiration [Option ID = 2134]
At Isoelectric pH the charge on protein is:
[Question ID = 553]
1. Positive charge on protein [Option ID = 2210]
2. Negative charge on protein [Option ID = 2211]
3. No charge on protein [Option ID = 2209]
4. Net charge on protein is zero [Option ID = 2212]
Correct Answer :-
Net charge on protein is zero [Option ID = 2212]
Lac is a material which is
[Question ID = 552]
1. hardened fecal matter of lac insect [Option ID = 2205]
2. protective secretion deposited by female lac insect [Option ID = 2206]
3. protective covering secreted by larva [Option ID = 2207]
4. resin secreted by the plant [Option ID = 2208]
Correct Answer :-
protective secretion deposited by female lac insect [Option ID = 2206]
Hardy-Weinberg?s law gives the concept of
[Question ID = 586]
35)
36)
37)
38)
39)
1. natural selection. [Option ID = 2344]
2. genetic drift [Option ID = 2341]
3. genetic equilibrium [Option ID = 2343]
4. mutation [Option ID = 2342]
Correct Answer :-
genetic equilibrium [Option ID = 2343]
The vertical migration of plankton is an instance of
[Question ID = 579]
1. Circadian rythmes [Option ID = 2313]
2. Circannual rythmes [Option ID = 2314]
3. photopriodism [Option ID = 2315]
4. photokinesis. [Option ID = 2316]
Correct Answer :-
Circadian rythmes [Option ID = 2313]
Treadmilling of actin filaments in the steady state occurs at G-actin concentration
[Question ID = 565]
1. Below the Cc of the (-) end [Option ID = 2257]
2. Above the Cc of the (-) end but below the Cc of the (+) end [Option ID = 2259]
3. Above the Cc of the (+) end but below the Cc of the (-) end [Option ID = 2260]
4. Above the Cc of the (+) end [Option ID = 2258]
Correct Answer :-
Above the Cc of the (+) end but below the Cc of the (-) end [Option ID = 2260]
Exon skipping is associated with:
[Question ID = 528]
1. regulatory mutations [Option ID = 2110]
2. RNA processing mutations [Option ID = 2111]
3. nonsense mutations [Option ID = 2109]
4. silent mutations [Option ID = 2112]
Correct Answer :-
RNA processing mutations [Option ID = 2111]
Bile is produced in our body which
[Question ID = 557]
1. Act as a surfactant to emulsify lipids in intestine. [Option ID = 2226]
2. It has no role associated with our body [Option ID = 2228]
3. Helps in digestion of starch in intestinbe [Option ID = 2227]
4. Helps in controlling blood pressure [Option ID = 2225]
Correct Answer :-
Act as a surfactant to emulsify lipids in intestine. [Option ID = 2226]
The inner cell mass of mammalian blastocyst develops into,
[Question ID = 578]
1. all embryonic structures [Option ID = 2311]
2. embryonic endoderm [Option ID = 2309]
3. chorio-allantoic placenta [Option ID = 2312]
4. yolk-sac placenta [Option ID = 2310]
Correct Answer :-
all embryonic structures [Option ID = 2311]
40)
41)
42)
43)
44)
45)
The isoform/s of actin present in muscle cells
[Question ID = 566]
1. beta-actin [Option ID = 2263]
2. beta-and gamma-actin [Option ID = 2264]
3. alpha-actin [Option ID = 2261]
4. alpha and beta-actin [Option ID = 2262]
Correct Answer :-
alpha-actin [Option ID = 2261]
The four postulates of the Chemiosmotic hypothesis accounted for:
[Question ID = 574]
1. ETC, F1-F0 ATPase, cardiolipin and pmf generators [Option ID = 2295]
2. ETC, F1-F0 ATPase, cardiolipin and anion exchangers [Option ID = 2296]
3. Cardiolipin [Option ID = 2294]
4. The four complexes of the electron transport chain (ETC). [Option ID = 2293]
Correct Answer :-
ETC, F1-F0 ATPase, cardiolipin and anion exchangers [Option ID = 2296]
Cilia and flagella contains a contractile protein called:
[Question ID = 575]
1. Myosin [Option ID = 2300]
2. Tubulin [Option ID = 2298]
3. Actin [Option ID = 2299]
4. Dyenin [Option ID = 2297]
Correct Answer :-
Dyenin [Option ID = 2297]
Insects such as Drosophila undergo three molts before undergoing metamorphosis. Molting is controlled by which of the following
hormone?
[Question ID = 532]
1. juvenile hormone [Option ID = 2126]
2. growth hormone [Option ID = 2128]
3. auxin [Option ID = 2127]
4. ecdysone [Option ID = 2125]
Correct Answer :-
ecdysone [Option ID = 2125]
Injection of anti-venom to a patient for snake bite is an example of
[Question ID = 562]
1. Artificially acquired active immunity [Option ID = 2246]
2. Artificially acquired passive immunity [Option ID = 2248]
3. Naturally acquired active immunity [Option ID = 2245]
4. Naturally acquired passive immunity [Option ID = 2247]
Correct Answer :-
Artificially acquired passive immunity [Option ID = 2248]
Steroid hormones are synthesized from
[Question ID = 558]
1. Glycogen [Option ID = 2232]
2. Tryptophan [Option ID = 2229]
3. Stearic acid [Option ID = 2231]
4. Cholesterol [Option ID = 2230]
46)
47)
48)
49)
50)
51)
Correct Answer :-
Cholesterol [Option ID = 2230]
When a heterozygous offspring is crossed to homozygous recessive parent, it is called as
[Question ID = 533]
1. Test cross [Option ID = 2129]
2. Reciprocal cross [Option ID = 2130]
3. Dihybrid cross [Option ID = 2132]
4. Monohybrid cross [Option ID = 2131]
Correct Answer :-
Test cross [Option ID = 2129]
Identify the statement that is NOT TRUE for Iron-sulphur clusters
[Question ID = 573]
1. These are prosthetic groups of succinate-coenzyme Q reductase complex. [Option ID = 2289]
2. These accept and release electrons one at a time [Option ID = 2291]
3. They contain Fe bonded to inorganic S atoms and S atoms on cysteine residues of proteins [Option ID = 2290]
4. They are always associated with cytochromes. [Option ID = 2292]
Correct Answer :-
They are always associated with cytochromes. [Option ID = 2292]
Of the early fish, which led to the extant fish of today?
[Question ID = 525]
1. cephalochordates [Option ID = 2099]
2. acanthodians [Option ID = 2100]
3. placoderms [Option ID = 2098]
4. heterostracans [Option ID = 2097]
Correct Answer :-
acanthodians [Option ID = 2100]
Water is a good solvent for inorganic salts because
[Question ID = 615]
1. hydrogen bond [Option ID = 2459]
2. dielectric constant [Option ID = 2457]
3. polarity [Option ID = 2458]
4. conductivity [Option ID = 2460]
Correct Answer :-
If the sequence of coding strand in a transcription unit is as follows: 5?-GAATTGCCAATTGCAGTC-3?, the sequence of mRNA
transcribed from the transcription unit would be, [Question ID = 604]
1. 3?-GAAUUGCCAAUUGCAGUC-5? [Option ID = 2416]
2. 5?-CUUAACGGUUAACGUCAG-3? [Option ID = 2414]
3. 5?-GAAUUGCCAAUUGCAGUC-3? [Option ID = 2413]
4. 5?-GACUGCAAUUGGCAAUUC-3? [Option ID = 2415]
Correct Answer :-
5?-GAAUUGCCAAUUGCAGUC-3? [Option ID = 2413]
In a Robertsonian translocation fusion occurs at the:
[Question ID = 529]
1. centromeres [Option ID = 2114]
2. histones [Option ID = 2115]
3. telomeres [Option ID = 2113]
FirstRanker.com - FirstRanker's Choice
1)
2)
3)
4)
5)
DU MSc Zoology
Topic:- DU_J18_MSC_ZOO
Which of the following is NOT a characteristic of lakes suffering from organic pollution?
[Question ID = 582]
1. High microbial concentration [Option ID = 2325]
2. High biochemical oxygen demand [Option ID = 2327]
3. Low phosphate levels [Option ID = 2328]
4. Frequent algal blooms [Option ID = 2326]
Correct Answer :-
Low phosphate levels [Option ID = 2328]
Which of the following was probably absent at the time of origin of life ?
[Question ID = 546]
1. Oxygen [Option ID = 2182]
2. Hydrogen [Option ID = 2181]
3. Methane [Option ID = 2183]
4. Carbon dioxide [Option ID = 2184]
Correct Answer :-
Oxygen [Option ID = 2182]
Which of the following genotypes causes Klinefelter syndrome?
[Question ID = 530]
1. XYY [Option ID = 2120]
2. XO [Option ID = 2117]
3. XXY [Option ID = 2118]
4. XX [Option ID = 2119]
Correct Answer :-
XXY [Option ID = 2118]
Which of the following is wrong match for enzyme classification?
[Question ID = 601]
1. EC 2 ? Trasnferases [Option ID = 2402]
2. EC 3- Hydrolases [Option ID = 2403]
3. EC 1 - Oxidoreductases [Option ID = 2401]
4. EC 4- Ligases [Option ID = 2404]
Correct Answer :-
EC 4- Ligases [Option ID = 2404]
Which of the following is not a possible explanation for the rapid rate of evolution of beak shape in Darwin?s finches?
[Question ID = 614]
1. Strong selection pressure [Option ID = 2455]
2. Small population size [Option ID = 2456]
3. High mutation rate [Option ID = 2453]
4. High emigrations and immigration rate [Option ID = 2454]
Correct Answer :-
High mutation rate [Option ID = 2453]
6)
7)
8)
9)
10)
11)
Which of the following animals is primarily an ectotherm?
[Question ID = 542]
1. Hawk [Option ID = 2165]
2. Lizard [Option ID = 2166]
3. Elephant [Option ID = 2168]
4. Shrew [Option ID = 2167]
Correct Answer :-
Lizard [Option ID = 2166]
Which of the following technique was used by Messelon and Stahl to separate DNA labeled with 15
N
from 14
N
?
[Question ID = 609]
1. Ion-exchange chromatography [Option ID = 2436]
2. Molecular-sieve filtration chromatography [Option ID = 2435]
3. Agarose Gel electrophoresis [Option ID = 2434]
4. CsCl density gradient centrifugation [Option ID = 2433]
Correct Answer :-
CsCl density gradient centrifugation [Option ID = 2433]
Which of the following molecule is most abundant in living system?
[Question ID = 608]
1. Water [Option ID = 2432]
2. Cellulose [Option ID = 2430]
3. Protein [Option ID = 2429]
4. Starch [Option ID = 2431]
Correct Answer :-
Water [Option ID = 2432]
Which system is active under stress?
[Question ID = 536]
1. Sympathetic nervous system [Option ID = 2142]
2. Somatic nervous system [Option ID = 2143]
3. Parasympathetic nervous system [Option ID = 2141]
4. Complete autonomic nervous system [Option ID = 2144]
Correct Answer :-
Sympathetic nervous system [Option ID = 2142]
Which is the first National park established in India:
[Question ID = 583]
1. Jim Corbet National Park [Option ID = 2329]
2. Periyar National Park [Option ID = 2332]
3. Kanziranga National Park [Option ID = 2330]
4. Kanha National Park [Option ID = 2331]
Correct Answer :-
Jim Corbet National Park [Option ID = 2329]
Doubling time for E. coli is 20 min. If the initial number of bacterium in a culture is 100, what would be number of bacterium after 60
min. [Question ID = 606]
1. 300 [Option ID = 2422]
2. 400 [Option ID = 2423]
3. 100 [Option ID = 2421]
4. 800 [Option ID = 2424]
12)
13)
14)
15)
16)
17)
Correct Answer :-
800 [Option ID = 2424]
X-chromosome inactivation
[Question ID = 527]
1. Is the cause of the y chromosome being genetically inactive [Option ID = 2106]
2. Takes place in humans so that the same X chromosome is inactive in all the cells of a female [Option ID = 2107]
3. Normally takes place in males but not in females [Option ID = 2105]
4. Results in genetically turning off one of the two X chromosome in female mammals [Option ID = 2108]
Correct Answer :-
Results in genetically turning off one of the two X chromosome in female mammals [Option ID = 2108]
In ecological succession from pioneer to climax community, the biomass shall:
[Question ID = 584]
1. Increase and then decrease [Option ID = 2334]
2. Increase continuously [Option ID = 2336]
3. Decrease [Option ID = 2333]
4. No relation [Option ID = 2335]
Correct Answer :-
Increase continuously [Option ID = 2336]
Import of glucose by the liver cell:
[Question ID = 569]
1. Is dependent on hydrolysis of ATP [Option ID = 2273]
2. Is facilitated by GLUT2 [Option ID = 2276]
3. Occurs throughout the phospholipid bilayer [Option ID = 2275]
4. Requires expression of GLUT1 on the plasma membrane [Option ID = 2274]
Correct Answer :-
Is facilitated by GLUT2 [Option ID = 2276]
The origin of the jaw in the gnathostomes is the
[Question ID = 524]
1. hyoid [Option ID = 2096]
2. gill arch [Option ID = 2093]
3. notochord [Option ID = 2095]
4. bones supporting the cranium [Option ID = 2094]
Correct Answer :-
gill arch [Option ID = 2093]
The dynamics of which cytoskeletal element changes in a moving amoeba?
[Question ID = 568]
1. Intermediate filaments [Option ID = 2271]
2. MreB [Option ID = 2272]
3. Microtubules [Option ID = 2269]
4. Microfilaments [Option ID = 2270]
Correct Answer :-
Microfilaments [Option ID = 2270]
Repeat core sequences consisting of 2, 3, or 4 base pairs are known as what?
[Question ID = 531]
18)
19)
20)
21)
22)
1. Single nucleotide polymorphisms (SNPs) [Option ID = 2121]
2. Minisatellites [Option ID = 2123]
3. Telomeres [Option ID = 2124]
4. Microsatellites [Option ID = 2122]
Correct Answer :-
Microsatellites [Option ID = 2122]
A haltere is a
[Question ID = 551]
1. Device used by a male insect to attract female for mating [Option ID = 2204]
2. balancing organ of housefly [Option ID = 2203]
3. sense organ of butterfly [Option ID = 2201]
4. modified forewing of beetle [Option ID = 2202]
Correct Answer :-
balancing organ of housefly [Option ID = 2203]
Linolenic (C18: 9,12,15) is an essential fatty acid for human because:
[Question ID = 555]
1. Lenolenic acid is available in fruits [Option ID = 2217]
2. Lenolenic acid gives much energy that palmitic acid [Option ID = 2219]
3. It is unsaturated fatty acid [Option ID = 2220]
4. Human cannot introduce double bond beyond 9-10 carbon of fatty acids [Option ID = 2218]
Correct Answer :-
Human cannot introduce double bond beyond 9-10 carbon of fatty acids [Option ID = 2218]
Passive immunity is obtained by:
[Question ID = 589]
1. Injecting the serum of another animal/individual containing antitoxin [Option ID = 2354]
2. Our own body cells preparing antibodies [Option ID = 2353]
3. Blood transfusion and blood clotting [Option ID = 2356]
4. Drinking medicinal concoctions [Option ID = 2355]
Correct Answer :-
Injecting the serum of another animal/individual containing antitoxin [Option ID = 2354]
2-amino-3 hydroxy propionic acid is the chemical name for which of the following amino acid:
[Question ID = 580]
1. serine [Option ID = 2320]
2. valine [Option ID = 2319]
3. glycine [Option ID = 2317]
4. alanine [Option ID = 2318]
Correct Answer :-
serine [Option ID = 2320]
Low pH of the lysosomal compartment is maintained by
[Question ID = 613]
1. Glycolysis [Option ID = 2452]
2. Electron transport chain [Option ID = 2449]
3. Proton ATPase at the membrane [Option ID = 2450]
4. Luminal acid production [Option ID = 2451]
Correct Answer :-
Proton ATPase at the membrane [Option ID = 2450]
23)
24)
25)
26)
27)
28)
Kidney of the vertebrate embryo develops from:
[Question ID = 591]
1. Mesoderm [Option ID = 2363]
2. Archenteron [Option ID = 2364]
3. Endoderm [Option ID = 2362]
4. Ectoderm [Option ID = 2361]
Correct Answer :-
Mesoderm [Option ID = 2363]
DNA is genetic material in
[Question ID = 563]
1. Only eukaryotes [Option ID = 2251]
2. Only Prokaryotes and eukaryotes [Option ID = 2250]
3. All viruses, prokaryotes, eukaryotes [Option ID = 2249]
4. Some viruses, all prokaryotes and eukaryotes [Option ID = 2252]
Correct Answer :-
Some viruses, all prokaryotes and eukaryotes [Option ID = 2252]
Which of the following statement is NOT TRUE for a competitive inhibitor in an enzyme catalysed reaction?
[Question ID = 600]
1. Their inhibition can be reversed by increasing the substrate concentration [Option ID = 2400]
2. They compete with substrate for binding to the active site. [Option ID = 2398]
3. They are structural analogues of the substrate. [Option ID = 2397]
4. They increase the Km, and decrease the Vmax. [Option ID = 2399]
Correct Answer :-
They increase the Km, and decrease the Vmax. [Option ID = 2399]
Knee joint is a
[Question ID = 548]
1. fibrous joint [Option ID = 2192]
2. cartilaginous joint [Option ID = 2191]
3. collagenous joint [Option ID = 2189]
4. synovial joint [Option ID = 2190]
Correct Answer :-
synovial joint [Option ID = 2190]
The heaviest organelle in cell is:
[Question ID = 556]
1. Lysosomes [Option ID = 2223]
2. Ribosomes [Option ID = 2224]
3. Nucleus [Option ID = 2222]
4. Mitochondria [Option ID = 2221]
Correct Answer :-
Nucleus [Option ID = 2222]
Wallace?s line is present in between
[Question ID = 544]
1. Oriental and Australian regions [Option ID = 2173]
2. Palaearctic and Ethiopian regions [Option ID = 2176]
3. Neotropical and Nearctic regions [Option ID = 2175]
4. Ethiopian and Oriental regions [Option ID = 2174]
29)
30)
31)
32)
33)
34)
Correct Answer :-
Oriental and Australian regions [Option ID = 2173]
In bivalves, which structure secretes pearl?
[Question ID = 598]
1. Nacreous gland. [Option ID = 2392]
2. Nacreous layer [Option ID = 2391]
3. Prismatic layer [Option ID = 2390]
4. Periostracum layer [Option ID = 2389]
Correct Answer :-
Nacreous layer [Option ID = 2391]
Ampicillin inhibits:
[Question ID = 559]
1. Cell wall synthesis in bacterial cells [Option ID = 2236]
2. RNA synthesis in Bacterial cells [Option ID = 2234]
3. DNA synthesis in bacterial cells [Option ID = 2233]
4. Protein synthesis in mammalian cell [Option ID = 2235]
Correct Answer :-
Cell wall synthesis in bacterial cells [Option ID = 2236]
Hiccups can be best described as ___________.
[Question ID = 534]
1. sign of somebody remembering you [Option ID = 2136]
2. vibration of the soft palate during breathing while sleeping [Option ID = 2135]
3. jerky incomplete inspiration [Option ID = 2134]
4. forceful sudden expiration [Option ID = 2133]
Correct Answer :-
jerky incomplete inspiration [Option ID = 2134]
At Isoelectric pH the charge on protein is:
[Question ID = 553]
1. Positive charge on protein [Option ID = 2210]
2. Negative charge on protein [Option ID = 2211]
3. No charge on protein [Option ID = 2209]
4. Net charge on protein is zero [Option ID = 2212]
Correct Answer :-
Net charge on protein is zero [Option ID = 2212]
Lac is a material which is
[Question ID = 552]
1. hardened fecal matter of lac insect [Option ID = 2205]
2. protective secretion deposited by female lac insect [Option ID = 2206]
3. protective covering secreted by larva [Option ID = 2207]
4. resin secreted by the plant [Option ID = 2208]
Correct Answer :-
protective secretion deposited by female lac insect [Option ID = 2206]
Hardy-Weinberg?s law gives the concept of
[Question ID = 586]
35)
36)
37)
38)
39)
1. natural selection. [Option ID = 2344]
2. genetic drift [Option ID = 2341]
3. genetic equilibrium [Option ID = 2343]
4. mutation [Option ID = 2342]
Correct Answer :-
genetic equilibrium [Option ID = 2343]
The vertical migration of plankton is an instance of
[Question ID = 579]
1. Circadian rythmes [Option ID = 2313]
2. Circannual rythmes [Option ID = 2314]
3. photopriodism [Option ID = 2315]
4. photokinesis. [Option ID = 2316]
Correct Answer :-
Circadian rythmes [Option ID = 2313]
Treadmilling of actin filaments in the steady state occurs at G-actin concentration
[Question ID = 565]
1. Below the Cc of the (-) end [Option ID = 2257]
2. Above the Cc of the (-) end but below the Cc of the (+) end [Option ID = 2259]
3. Above the Cc of the (+) end but below the Cc of the (-) end [Option ID = 2260]
4. Above the Cc of the (+) end [Option ID = 2258]
Correct Answer :-
Above the Cc of the (+) end but below the Cc of the (-) end [Option ID = 2260]
Exon skipping is associated with:
[Question ID = 528]
1. regulatory mutations [Option ID = 2110]
2. RNA processing mutations [Option ID = 2111]
3. nonsense mutations [Option ID = 2109]
4. silent mutations [Option ID = 2112]
Correct Answer :-
RNA processing mutations [Option ID = 2111]
Bile is produced in our body which
[Question ID = 557]
1. Act as a surfactant to emulsify lipids in intestine. [Option ID = 2226]
2. It has no role associated with our body [Option ID = 2228]
3. Helps in digestion of starch in intestinbe [Option ID = 2227]
4. Helps in controlling blood pressure [Option ID = 2225]
Correct Answer :-
Act as a surfactant to emulsify lipids in intestine. [Option ID = 2226]
The inner cell mass of mammalian blastocyst develops into,
[Question ID = 578]
1. all embryonic structures [Option ID = 2311]
2. embryonic endoderm [Option ID = 2309]
3. chorio-allantoic placenta [Option ID = 2312]
4. yolk-sac placenta [Option ID = 2310]
Correct Answer :-
all embryonic structures [Option ID = 2311]
40)
41)
42)
43)
44)
45)
The isoform/s of actin present in muscle cells
[Question ID = 566]
1. beta-actin [Option ID = 2263]
2. beta-and gamma-actin [Option ID = 2264]
3. alpha-actin [Option ID = 2261]
4. alpha and beta-actin [Option ID = 2262]
Correct Answer :-
alpha-actin [Option ID = 2261]
The four postulates of the Chemiosmotic hypothesis accounted for:
[Question ID = 574]
1. ETC, F1-F0 ATPase, cardiolipin and pmf generators [Option ID = 2295]
2. ETC, F1-F0 ATPase, cardiolipin and anion exchangers [Option ID = 2296]
3. Cardiolipin [Option ID = 2294]
4. The four complexes of the electron transport chain (ETC). [Option ID = 2293]
Correct Answer :-
ETC, F1-F0 ATPase, cardiolipin and anion exchangers [Option ID = 2296]
Cilia and flagella contains a contractile protein called:
[Question ID = 575]
1. Myosin [Option ID = 2300]
2. Tubulin [Option ID = 2298]
3. Actin [Option ID = 2299]
4. Dyenin [Option ID = 2297]
Correct Answer :-
Dyenin [Option ID = 2297]
Insects such as Drosophila undergo three molts before undergoing metamorphosis. Molting is controlled by which of the following
hormone?
[Question ID = 532]
1. juvenile hormone [Option ID = 2126]
2. growth hormone [Option ID = 2128]
3. auxin [Option ID = 2127]
4. ecdysone [Option ID = 2125]
Correct Answer :-
ecdysone [Option ID = 2125]
Injection of anti-venom to a patient for snake bite is an example of
[Question ID = 562]
1. Artificially acquired active immunity [Option ID = 2246]
2. Artificially acquired passive immunity [Option ID = 2248]
3. Naturally acquired active immunity [Option ID = 2245]
4. Naturally acquired passive immunity [Option ID = 2247]
Correct Answer :-
Artificially acquired passive immunity [Option ID = 2248]
Steroid hormones are synthesized from
[Question ID = 558]
1. Glycogen [Option ID = 2232]
2. Tryptophan [Option ID = 2229]
3. Stearic acid [Option ID = 2231]
4. Cholesterol [Option ID = 2230]
46)
47)
48)
49)
50)
51)
Correct Answer :-
Cholesterol [Option ID = 2230]
When a heterozygous offspring is crossed to homozygous recessive parent, it is called as
[Question ID = 533]
1. Test cross [Option ID = 2129]
2. Reciprocal cross [Option ID = 2130]
3. Dihybrid cross [Option ID = 2132]
4. Monohybrid cross [Option ID = 2131]
Correct Answer :-
Test cross [Option ID = 2129]
Identify the statement that is NOT TRUE for Iron-sulphur clusters
[Question ID = 573]
1. These are prosthetic groups of succinate-coenzyme Q reductase complex. [Option ID = 2289]
2. These accept and release electrons one at a time [Option ID = 2291]
3. They contain Fe bonded to inorganic S atoms and S atoms on cysteine residues of proteins [Option ID = 2290]
4. They are always associated with cytochromes. [Option ID = 2292]
Correct Answer :-
They are always associated with cytochromes. [Option ID = 2292]
Of the early fish, which led to the extant fish of today?
[Question ID = 525]
1. cephalochordates [Option ID = 2099]
2. acanthodians [Option ID = 2100]
3. placoderms [Option ID = 2098]
4. heterostracans [Option ID = 2097]
Correct Answer :-
acanthodians [Option ID = 2100]
Water is a good solvent for inorganic salts because
[Question ID = 615]
1. hydrogen bond [Option ID = 2459]
2. dielectric constant [Option ID = 2457]
3. polarity [Option ID = 2458]
4. conductivity [Option ID = 2460]
Correct Answer :-
If the sequence of coding strand in a transcription unit is as follows: 5?-GAATTGCCAATTGCAGTC-3?, the sequence of mRNA
transcribed from the transcription unit would be, [Question ID = 604]
1. 3?-GAAUUGCCAAUUGCAGUC-5? [Option ID = 2416]
2. 5?-CUUAACGGUUAACGUCAG-3? [Option ID = 2414]
3. 5?-GAAUUGCCAAUUGCAGUC-3? [Option ID = 2413]
4. 5?-GACUGCAAUUGGCAAUUC-3? [Option ID = 2415]
Correct Answer :-
5?-GAAUUGCCAAUUGCAGUC-3? [Option ID = 2413]
In a Robertsonian translocation fusion occurs at the:
[Question ID = 529]
1. centromeres [Option ID = 2114]
2. histones [Option ID = 2115]
3. telomeres [Option ID = 2113]
52)
53)
54)
55)
56)
57)
4. ends of the long arms [Option ID = 2116]
Correct Answer :-
centromeres [Option ID = 2114]
Symporters are cotransporters that transport:
[Question ID = 570]
1. Cations and anions in the opposite direction. [Option ID = 2278]
2. Glucose against its concentration gradient. [Option ID = 2280]
3. Small molecules and gases in the same direction. [Option ID = 2277]
4. Na+ ions and glucose against the concentration gradient. [Option ID = 2279]
Correct Answer :-
Glucose against its concentration gradient. [Option ID = 2280]
Bidirectional movement of vesicles requires
[Question ID = 567]
1. Kinesin I [Option ID = 2265]
2. Association of (+) and (-) end-directed motors [Option ID = 2268]
3. A flexible neck region on the motor protein [Option ID = 2267]
4. Microtubules and microfilaments [Option ID = 2266]
Correct Answer :-
Association of (+) and (-) end-directed motors [Option ID = 2268]
Pharyngeal gill slits
[Question ID = 521]
1. are not found in protochordates, but are present in vertebrates, at least during the embryonic life [Option ID = 2084]
2. are found in higher inverterates and vertebrates [Option ID = 2083]
3. are found in fishes, crabs, snails, aquatic insects [Option ID = 2082]
4. are unique chordate characteristic [Option ID = 2081]
Correct Answer :-
are unique chordate characteristic [Option ID = 2081]
Three pg of a hypothetical protein-X is present in a cell. How many molecules of protein-X would be present in a cell, if the molecular
weight of the protein is 30000? (Given, Avogaro?s number is 6 x 10
23
)
[Question ID = 610]
1. 6 x 10
15
[Option ID = 2439]
2. 6 x 10
7
[Option ID = 2438]
3. 6 x 10
23
[Option ID = 2440]
4. 6 x 10
6
[Option ID = 2437]
Correct Answer :-
6 x 10
7
[Option ID = 2438]
Ciliated pseudostratified columnar epithelia are found in
[Question ID = 537]
1. membranous part of male vas deferens [Option ID = 2147]
2. linings of the trachea & upper respiratory tract [Option ID = 2146]
3. lining of the trachea [Option ID = 2145]
4. Vagina [Option ID = 2148]
Correct Answer :-
linings of the trachea & upper respiratory tract [Option ID = 2146]
In vertebrates, which one of the following structures is believed to have been transformed into thyroid gland? [Question ID = 592]
FirstRanker.com - FirstRanker's Choice
1)
2)
3)
4)
5)
DU MSc Zoology
Topic:- DU_J18_MSC_ZOO
Which of the following is NOT a characteristic of lakes suffering from organic pollution?
[Question ID = 582]
1. High microbial concentration [Option ID = 2325]
2. High biochemical oxygen demand [Option ID = 2327]
3. Low phosphate levels [Option ID = 2328]
4. Frequent algal blooms [Option ID = 2326]
Correct Answer :-
Low phosphate levels [Option ID = 2328]
Which of the following was probably absent at the time of origin of life ?
[Question ID = 546]
1. Oxygen [Option ID = 2182]
2. Hydrogen [Option ID = 2181]
3. Methane [Option ID = 2183]
4. Carbon dioxide [Option ID = 2184]
Correct Answer :-
Oxygen [Option ID = 2182]
Which of the following genotypes causes Klinefelter syndrome?
[Question ID = 530]
1. XYY [Option ID = 2120]
2. XO [Option ID = 2117]
3. XXY [Option ID = 2118]
4. XX [Option ID = 2119]
Correct Answer :-
XXY [Option ID = 2118]
Which of the following is wrong match for enzyme classification?
[Question ID = 601]
1. EC 2 ? Trasnferases [Option ID = 2402]
2. EC 3- Hydrolases [Option ID = 2403]
3. EC 1 - Oxidoreductases [Option ID = 2401]
4. EC 4- Ligases [Option ID = 2404]
Correct Answer :-
EC 4- Ligases [Option ID = 2404]
Which of the following is not a possible explanation for the rapid rate of evolution of beak shape in Darwin?s finches?
[Question ID = 614]
1. Strong selection pressure [Option ID = 2455]
2. Small population size [Option ID = 2456]
3. High mutation rate [Option ID = 2453]
4. High emigrations and immigration rate [Option ID = 2454]
Correct Answer :-
High mutation rate [Option ID = 2453]
6)
7)
8)
9)
10)
11)
Which of the following animals is primarily an ectotherm?
[Question ID = 542]
1. Hawk [Option ID = 2165]
2. Lizard [Option ID = 2166]
3. Elephant [Option ID = 2168]
4. Shrew [Option ID = 2167]
Correct Answer :-
Lizard [Option ID = 2166]
Which of the following technique was used by Messelon and Stahl to separate DNA labeled with 15
N
from 14
N
?
[Question ID = 609]
1. Ion-exchange chromatography [Option ID = 2436]
2. Molecular-sieve filtration chromatography [Option ID = 2435]
3. Agarose Gel electrophoresis [Option ID = 2434]
4. CsCl density gradient centrifugation [Option ID = 2433]
Correct Answer :-
CsCl density gradient centrifugation [Option ID = 2433]
Which of the following molecule is most abundant in living system?
[Question ID = 608]
1. Water [Option ID = 2432]
2. Cellulose [Option ID = 2430]
3. Protein [Option ID = 2429]
4. Starch [Option ID = 2431]
Correct Answer :-
Water [Option ID = 2432]
Which system is active under stress?
[Question ID = 536]
1. Sympathetic nervous system [Option ID = 2142]
2. Somatic nervous system [Option ID = 2143]
3. Parasympathetic nervous system [Option ID = 2141]
4. Complete autonomic nervous system [Option ID = 2144]
Correct Answer :-
Sympathetic nervous system [Option ID = 2142]
Which is the first National park established in India:
[Question ID = 583]
1. Jim Corbet National Park [Option ID = 2329]
2. Periyar National Park [Option ID = 2332]
3. Kanziranga National Park [Option ID = 2330]
4. Kanha National Park [Option ID = 2331]
Correct Answer :-
Jim Corbet National Park [Option ID = 2329]
Doubling time for E. coli is 20 min. If the initial number of bacterium in a culture is 100, what would be number of bacterium after 60
min. [Question ID = 606]
1. 300 [Option ID = 2422]
2. 400 [Option ID = 2423]
3. 100 [Option ID = 2421]
4. 800 [Option ID = 2424]
12)
13)
14)
15)
16)
17)
Correct Answer :-
800 [Option ID = 2424]
X-chromosome inactivation
[Question ID = 527]
1. Is the cause of the y chromosome being genetically inactive [Option ID = 2106]
2. Takes place in humans so that the same X chromosome is inactive in all the cells of a female [Option ID = 2107]
3. Normally takes place in males but not in females [Option ID = 2105]
4. Results in genetically turning off one of the two X chromosome in female mammals [Option ID = 2108]
Correct Answer :-
Results in genetically turning off one of the two X chromosome in female mammals [Option ID = 2108]
In ecological succession from pioneer to climax community, the biomass shall:
[Question ID = 584]
1. Increase and then decrease [Option ID = 2334]
2. Increase continuously [Option ID = 2336]
3. Decrease [Option ID = 2333]
4. No relation [Option ID = 2335]
Correct Answer :-
Increase continuously [Option ID = 2336]
Import of glucose by the liver cell:
[Question ID = 569]
1. Is dependent on hydrolysis of ATP [Option ID = 2273]
2. Is facilitated by GLUT2 [Option ID = 2276]
3. Occurs throughout the phospholipid bilayer [Option ID = 2275]
4. Requires expression of GLUT1 on the plasma membrane [Option ID = 2274]
Correct Answer :-
Is facilitated by GLUT2 [Option ID = 2276]
The origin of the jaw in the gnathostomes is the
[Question ID = 524]
1. hyoid [Option ID = 2096]
2. gill arch [Option ID = 2093]
3. notochord [Option ID = 2095]
4. bones supporting the cranium [Option ID = 2094]
Correct Answer :-
gill arch [Option ID = 2093]
The dynamics of which cytoskeletal element changes in a moving amoeba?
[Question ID = 568]
1. Intermediate filaments [Option ID = 2271]
2. MreB [Option ID = 2272]
3. Microtubules [Option ID = 2269]
4. Microfilaments [Option ID = 2270]
Correct Answer :-
Microfilaments [Option ID = 2270]
Repeat core sequences consisting of 2, 3, or 4 base pairs are known as what?
[Question ID = 531]
18)
19)
20)
21)
22)
1. Single nucleotide polymorphisms (SNPs) [Option ID = 2121]
2. Minisatellites [Option ID = 2123]
3. Telomeres [Option ID = 2124]
4. Microsatellites [Option ID = 2122]
Correct Answer :-
Microsatellites [Option ID = 2122]
A haltere is a
[Question ID = 551]
1. Device used by a male insect to attract female for mating [Option ID = 2204]
2. balancing organ of housefly [Option ID = 2203]
3. sense organ of butterfly [Option ID = 2201]
4. modified forewing of beetle [Option ID = 2202]
Correct Answer :-
balancing organ of housefly [Option ID = 2203]
Linolenic (C18: 9,12,15) is an essential fatty acid for human because:
[Question ID = 555]
1. Lenolenic acid is available in fruits [Option ID = 2217]
2. Lenolenic acid gives much energy that palmitic acid [Option ID = 2219]
3. It is unsaturated fatty acid [Option ID = 2220]
4. Human cannot introduce double bond beyond 9-10 carbon of fatty acids [Option ID = 2218]
Correct Answer :-
Human cannot introduce double bond beyond 9-10 carbon of fatty acids [Option ID = 2218]
Passive immunity is obtained by:
[Question ID = 589]
1. Injecting the serum of another animal/individual containing antitoxin [Option ID = 2354]
2. Our own body cells preparing antibodies [Option ID = 2353]
3. Blood transfusion and blood clotting [Option ID = 2356]
4. Drinking medicinal concoctions [Option ID = 2355]
Correct Answer :-
Injecting the serum of another animal/individual containing antitoxin [Option ID = 2354]
2-amino-3 hydroxy propionic acid is the chemical name for which of the following amino acid:
[Question ID = 580]
1. serine [Option ID = 2320]
2. valine [Option ID = 2319]
3. glycine [Option ID = 2317]
4. alanine [Option ID = 2318]
Correct Answer :-
serine [Option ID = 2320]
Low pH of the lysosomal compartment is maintained by
[Question ID = 613]
1. Glycolysis [Option ID = 2452]
2. Electron transport chain [Option ID = 2449]
3. Proton ATPase at the membrane [Option ID = 2450]
4. Luminal acid production [Option ID = 2451]
Correct Answer :-
Proton ATPase at the membrane [Option ID = 2450]
23)
24)
25)
26)
27)
28)
Kidney of the vertebrate embryo develops from:
[Question ID = 591]
1. Mesoderm [Option ID = 2363]
2. Archenteron [Option ID = 2364]
3. Endoderm [Option ID = 2362]
4. Ectoderm [Option ID = 2361]
Correct Answer :-
Mesoderm [Option ID = 2363]
DNA is genetic material in
[Question ID = 563]
1. Only eukaryotes [Option ID = 2251]
2. Only Prokaryotes and eukaryotes [Option ID = 2250]
3. All viruses, prokaryotes, eukaryotes [Option ID = 2249]
4. Some viruses, all prokaryotes and eukaryotes [Option ID = 2252]
Correct Answer :-
Some viruses, all prokaryotes and eukaryotes [Option ID = 2252]
Which of the following statement is NOT TRUE for a competitive inhibitor in an enzyme catalysed reaction?
[Question ID = 600]
1. Their inhibition can be reversed by increasing the substrate concentration [Option ID = 2400]
2. They compete with substrate for binding to the active site. [Option ID = 2398]
3. They are structural analogues of the substrate. [Option ID = 2397]
4. They increase the Km, and decrease the Vmax. [Option ID = 2399]
Correct Answer :-
They increase the Km, and decrease the Vmax. [Option ID = 2399]
Knee joint is a
[Question ID = 548]
1. fibrous joint [Option ID = 2192]
2. cartilaginous joint [Option ID = 2191]
3. collagenous joint [Option ID = 2189]
4. synovial joint [Option ID = 2190]
Correct Answer :-
synovial joint [Option ID = 2190]
The heaviest organelle in cell is:
[Question ID = 556]
1. Lysosomes [Option ID = 2223]
2. Ribosomes [Option ID = 2224]
3. Nucleus [Option ID = 2222]
4. Mitochondria [Option ID = 2221]
Correct Answer :-
Nucleus [Option ID = 2222]
Wallace?s line is present in between
[Question ID = 544]
1. Oriental and Australian regions [Option ID = 2173]
2. Palaearctic and Ethiopian regions [Option ID = 2176]
3. Neotropical and Nearctic regions [Option ID = 2175]
4. Ethiopian and Oriental regions [Option ID = 2174]
29)
30)
31)
32)
33)
34)
Correct Answer :-
Oriental and Australian regions [Option ID = 2173]
In bivalves, which structure secretes pearl?
[Question ID = 598]
1. Nacreous gland. [Option ID = 2392]
2. Nacreous layer [Option ID = 2391]
3. Prismatic layer [Option ID = 2390]
4. Periostracum layer [Option ID = 2389]
Correct Answer :-
Nacreous layer [Option ID = 2391]
Ampicillin inhibits:
[Question ID = 559]
1. Cell wall synthesis in bacterial cells [Option ID = 2236]
2. RNA synthesis in Bacterial cells [Option ID = 2234]
3. DNA synthesis in bacterial cells [Option ID = 2233]
4. Protein synthesis in mammalian cell [Option ID = 2235]
Correct Answer :-
Cell wall synthesis in bacterial cells [Option ID = 2236]
Hiccups can be best described as ___________.
[Question ID = 534]
1. sign of somebody remembering you [Option ID = 2136]
2. vibration of the soft palate during breathing while sleeping [Option ID = 2135]
3. jerky incomplete inspiration [Option ID = 2134]
4. forceful sudden expiration [Option ID = 2133]
Correct Answer :-
jerky incomplete inspiration [Option ID = 2134]
At Isoelectric pH the charge on protein is:
[Question ID = 553]
1. Positive charge on protein [Option ID = 2210]
2. Negative charge on protein [Option ID = 2211]
3. No charge on protein [Option ID = 2209]
4. Net charge on protein is zero [Option ID = 2212]
Correct Answer :-
Net charge on protein is zero [Option ID = 2212]
Lac is a material which is
[Question ID = 552]
1. hardened fecal matter of lac insect [Option ID = 2205]
2. protective secretion deposited by female lac insect [Option ID = 2206]
3. protective covering secreted by larva [Option ID = 2207]
4. resin secreted by the plant [Option ID = 2208]
Correct Answer :-
protective secretion deposited by female lac insect [Option ID = 2206]
Hardy-Weinberg?s law gives the concept of
[Question ID = 586]
35)
36)
37)
38)
39)
1. natural selection. [Option ID = 2344]
2. genetic drift [Option ID = 2341]
3. genetic equilibrium [Option ID = 2343]
4. mutation [Option ID = 2342]
Correct Answer :-
genetic equilibrium [Option ID = 2343]
The vertical migration of plankton is an instance of
[Question ID = 579]
1. Circadian rythmes [Option ID = 2313]
2. Circannual rythmes [Option ID = 2314]
3. photopriodism [Option ID = 2315]
4. photokinesis. [Option ID = 2316]
Correct Answer :-
Circadian rythmes [Option ID = 2313]
Treadmilling of actin filaments in the steady state occurs at G-actin concentration
[Question ID = 565]
1. Below the Cc of the (-) end [Option ID = 2257]
2. Above the Cc of the (-) end but below the Cc of the (+) end [Option ID = 2259]
3. Above the Cc of the (+) end but below the Cc of the (-) end [Option ID = 2260]
4. Above the Cc of the (+) end [Option ID = 2258]
Correct Answer :-
Above the Cc of the (+) end but below the Cc of the (-) end [Option ID = 2260]
Exon skipping is associated with:
[Question ID = 528]
1. regulatory mutations [Option ID = 2110]
2. RNA processing mutations [Option ID = 2111]
3. nonsense mutations [Option ID = 2109]
4. silent mutations [Option ID = 2112]
Correct Answer :-
RNA processing mutations [Option ID = 2111]
Bile is produced in our body which
[Question ID = 557]
1. Act as a surfactant to emulsify lipids in intestine. [Option ID = 2226]
2. It has no role associated with our body [Option ID = 2228]
3. Helps in digestion of starch in intestinbe [Option ID = 2227]
4. Helps in controlling blood pressure [Option ID = 2225]
Correct Answer :-
Act as a surfactant to emulsify lipids in intestine. [Option ID = 2226]
The inner cell mass of mammalian blastocyst develops into,
[Question ID = 578]
1. all embryonic structures [Option ID = 2311]
2. embryonic endoderm [Option ID = 2309]
3. chorio-allantoic placenta [Option ID = 2312]
4. yolk-sac placenta [Option ID = 2310]
Correct Answer :-
all embryonic structures [Option ID = 2311]
40)
41)
42)
43)
44)
45)
The isoform/s of actin present in muscle cells
[Question ID = 566]
1. beta-actin [Option ID = 2263]
2. beta-and gamma-actin [Option ID = 2264]
3. alpha-actin [Option ID = 2261]
4. alpha and beta-actin [Option ID = 2262]
Correct Answer :-
alpha-actin [Option ID = 2261]
The four postulates of the Chemiosmotic hypothesis accounted for:
[Question ID = 574]
1. ETC, F1-F0 ATPase, cardiolipin and pmf generators [Option ID = 2295]
2. ETC, F1-F0 ATPase, cardiolipin and anion exchangers [Option ID = 2296]
3. Cardiolipin [Option ID = 2294]
4. The four complexes of the electron transport chain (ETC). [Option ID = 2293]
Correct Answer :-
ETC, F1-F0 ATPase, cardiolipin and anion exchangers [Option ID = 2296]
Cilia and flagella contains a contractile protein called:
[Question ID = 575]
1. Myosin [Option ID = 2300]
2. Tubulin [Option ID = 2298]
3. Actin [Option ID = 2299]
4. Dyenin [Option ID = 2297]
Correct Answer :-
Dyenin [Option ID = 2297]
Insects such as Drosophila undergo three molts before undergoing metamorphosis. Molting is controlled by which of the following
hormone?
[Question ID = 532]
1. juvenile hormone [Option ID = 2126]
2. growth hormone [Option ID = 2128]
3. auxin [Option ID = 2127]
4. ecdysone [Option ID = 2125]
Correct Answer :-
ecdysone [Option ID = 2125]
Injection of anti-venom to a patient for snake bite is an example of
[Question ID = 562]
1. Artificially acquired active immunity [Option ID = 2246]
2. Artificially acquired passive immunity [Option ID = 2248]
3. Naturally acquired active immunity [Option ID = 2245]
4. Naturally acquired passive immunity [Option ID = 2247]
Correct Answer :-
Artificially acquired passive immunity [Option ID = 2248]
Steroid hormones are synthesized from
[Question ID = 558]
1. Glycogen [Option ID = 2232]
2. Tryptophan [Option ID = 2229]
3. Stearic acid [Option ID = 2231]
4. Cholesterol [Option ID = 2230]
46)
47)
48)
49)
50)
51)
Correct Answer :-
Cholesterol [Option ID = 2230]
When a heterozygous offspring is crossed to homozygous recessive parent, it is called as
[Question ID = 533]
1. Test cross [Option ID = 2129]
2. Reciprocal cross [Option ID = 2130]
3. Dihybrid cross [Option ID = 2132]
4. Monohybrid cross [Option ID = 2131]
Correct Answer :-
Test cross [Option ID = 2129]
Identify the statement that is NOT TRUE for Iron-sulphur clusters
[Question ID = 573]
1. These are prosthetic groups of succinate-coenzyme Q reductase complex. [Option ID = 2289]
2. These accept and release electrons one at a time [Option ID = 2291]
3. They contain Fe bonded to inorganic S atoms and S atoms on cysteine residues of proteins [Option ID = 2290]
4. They are always associated with cytochromes. [Option ID = 2292]
Correct Answer :-
They are always associated with cytochromes. [Option ID = 2292]
Of the early fish, which led to the extant fish of today?
[Question ID = 525]
1. cephalochordates [Option ID = 2099]
2. acanthodians [Option ID = 2100]
3. placoderms [Option ID = 2098]
4. heterostracans [Option ID = 2097]
Correct Answer :-
acanthodians [Option ID = 2100]
Water is a good solvent for inorganic salts because
[Question ID = 615]
1. hydrogen bond [Option ID = 2459]
2. dielectric constant [Option ID = 2457]
3. polarity [Option ID = 2458]
4. conductivity [Option ID = 2460]
Correct Answer :-
If the sequence of coding strand in a transcription unit is as follows: 5?-GAATTGCCAATTGCAGTC-3?, the sequence of mRNA
transcribed from the transcription unit would be, [Question ID = 604]
1. 3?-GAAUUGCCAAUUGCAGUC-5? [Option ID = 2416]
2. 5?-CUUAACGGUUAACGUCAG-3? [Option ID = 2414]
3. 5?-GAAUUGCCAAUUGCAGUC-3? [Option ID = 2413]
4. 5?-GACUGCAAUUGGCAAUUC-3? [Option ID = 2415]
Correct Answer :-
5?-GAAUUGCCAAUUGCAGUC-3? [Option ID = 2413]
In a Robertsonian translocation fusion occurs at the:
[Question ID = 529]
1. centromeres [Option ID = 2114]
2. histones [Option ID = 2115]
3. telomeres [Option ID = 2113]
52)
53)
54)
55)
56)
57)
4. ends of the long arms [Option ID = 2116]
Correct Answer :-
centromeres [Option ID = 2114]
Symporters are cotransporters that transport:
[Question ID = 570]
1. Cations and anions in the opposite direction. [Option ID = 2278]
2. Glucose against its concentration gradient. [Option ID = 2280]
3. Small molecules and gases in the same direction. [Option ID = 2277]
4. Na+ ions and glucose against the concentration gradient. [Option ID = 2279]
Correct Answer :-
Glucose against its concentration gradient. [Option ID = 2280]
Bidirectional movement of vesicles requires
[Question ID = 567]
1. Kinesin I [Option ID = 2265]
2. Association of (+) and (-) end-directed motors [Option ID = 2268]
3. A flexible neck region on the motor protein [Option ID = 2267]
4. Microtubules and microfilaments [Option ID = 2266]
Correct Answer :-
Association of (+) and (-) end-directed motors [Option ID = 2268]
Pharyngeal gill slits
[Question ID = 521]
1. are not found in protochordates, but are present in vertebrates, at least during the embryonic life [Option ID = 2084]
2. are found in higher inverterates and vertebrates [Option ID = 2083]
3. are found in fishes, crabs, snails, aquatic insects [Option ID = 2082]
4. are unique chordate characteristic [Option ID = 2081]
Correct Answer :-
are unique chordate characteristic [Option ID = 2081]
Three pg of a hypothetical protein-X is present in a cell. How many molecules of protein-X would be present in a cell, if the molecular
weight of the protein is 30000? (Given, Avogaro?s number is 6 x 10
23
)
[Question ID = 610]
1. 6 x 10
15
[Option ID = 2439]
2. 6 x 10
7
[Option ID = 2438]
3. 6 x 10
23
[Option ID = 2440]
4. 6 x 10
6
[Option ID = 2437]
Correct Answer :-
6 x 10
7
[Option ID = 2438]
Ciliated pseudostratified columnar epithelia are found in
[Question ID = 537]
1. membranous part of male vas deferens [Option ID = 2147]
2. linings of the trachea & upper respiratory tract [Option ID = 2146]
3. lining of the trachea [Option ID = 2145]
4. Vagina [Option ID = 2148]
Correct Answer :-
linings of the trachea & upper respiratory tract [Option ID = 2146]
In vertebrates, which one of the following structures is believed to have been transformed into thyroid gland? [Question ID = 592]
58)
59)
60)
61)
62)
63)
1. Pygostyle [Option ID = 2365]
2. Analstyle [Option ID = 2367]
3. Endostyle [Option ID = 2368]
4. Urostyle [Option ID = 2366]
Correct Answer :-
Endostyle [Option ID = 2368]
DNA double helix is stabilized by: [Question ID = 602]
1. Hydrophobic interactions only [Option ID = 2408]
2. H-bonds only [Option ID = 2405]
3. H-bonds and base stacking interactions [Option ID = 2406]
4. Electrostatic interactions [Option ID = 2407]
Correct Answer :-
H-bonds and base stacking interactions [Option ID = 2406]
Three forms of Daphnia are found in varying seasons. This phenomenon is called: [Question ID = 593]
1. Poly morphism [Option ID = 2369]
2. Seasonal peroidicity [Option ID = 2371]
3. Adaptation [Option ID = 2372]
4. Cyclomorphism [Option ID = 2370]
Correct Answer :-
Cyclomorphism [Option ID = 2370]
A gene showing co-dominance
[Question ID = 526]
1. Has alleles tightly linked on the same chromosome [Option ID = 2103]
2. Has alleles expressed at the same time in development [Option ID = 2104]
3. Has one allele dominant to the other [Option ID = 2101]
4. Has both alleles independently expressed in heterozygote [Option ID = 2102]
Correct Answer :-
Has both alleles independently expressed in heterozygote [Option ID = 2102]
If the atrioventricular node could be surgically removed from the heart without disrupting signal transmission to bundle of His,
then?
[Question ID = 587]
1. atria & ventricle would contract almost simultaneously [Option ID = 2348]
2. the heart rate would be decreased. [Option ID = 2345]
3. only artia would contract. [Option ID = 2346]
4. only ventricle would contract. [Option ID = 2347]
Correct Answer :-
atria & ventricle would contract almost simultaneously [Option ID = 2348]
A double stranded DNA has 30 mole percent of cytosine. What would be the mole percent of adenine in it?
[Question ID = 605]
1. 40 [Option ID = 2419]
2. 20 [Option ID = 2417]
3. 60 [Option ID = 2420]
4. 30 [Option ID = 2418]
Correct Answer :-
20 [Option ID = 2417]
A protein having both structural and enzymatic properties is
[Question ID = 535]
FirstRanker.com - FirstRanker's Choice
1)
2)
3)
4)
5)
DU MSc Zoology
Topic:- DU_J18_MSC_ZOO
Which of the following is NOT a characteristic of lakes suffering from organic pollution?
[Question ID = 582]
1. High microbial concentration [Option ID = 2325]
2. High biochemical oxygen demand [Option ID = 2327]
3. Low phosphate levels [Option ID = 2328]
4. Frequent algal blooms [Option ID = 2326]
Correct Answer :-
Low phosphate levels [Option ID = 2328]
Which of the following was probably absent at the time of origin of life ?
[Question ID = 546]
1. Oxygen [Option ID = 2182]
2. Hydrogen [Option ID = 2181]
3. Methane [Option ID = 2183]
4. Carbon dioxide [Option ID = 2184]
Correct Answer :-
Oxygen [Option ID = 2182]
Which of the following genotypes causes Klinefelter syndrome?
[Question ID = 530]
1. XYY [Option ID = 2120]
2. XO [Option ID = 2117]
3. XXY [Option ID = 2118]
4. XX [Option ID = 2119]
Correct Answer :-
XXY [Option ID = 2118]
Which of the following is wrong match for enzyme classification?
[Question ID = 601]
1. EC 2 ? Trasnferases [Option ID = 2402]
2. EC 3- Hydrolases [Option ID = 2403]
3. EC 1 - Oxidoreductases [Option ID = 2401]
4. EC 4- Ligases [Option ID = 2404]
Correct Answer :-
EC 4- Ligases [Option ID = 2404]
Which of the following is not a possible explanation for the rapid rate of evolution of beak shape in Darwin?s finches?
[Question ID = 614]
1. Strong selection pressure [Option ID = 2455]
2. Small population size [Option ID = 2456]
3. High mutation rate [Option ID = 2453]
4. High emigrations and immigration rate [Option ID = 2454]
Correct Answer :-
High mutation rate [Option ID = 2453]
6)
7)
8)
9)
10)
11)
Which of the following animals is primarily an ectotherm?
[Question ID = 542]
1. Hawk [Option ID = 2165]
2. Lizard [Option ID = 2166]
3. Elephant [Option ID = 2168]
4. Shrew [Option ID = 2167]
Correct Answer :-
Lizard [Option ID = 2166]
Which of the following technique was used by Messelon and Stahl to separate DNA labeled with 15
N
from 14
N
?
[Question ID = 609]
1. Ion-exchange chromatography [Option ID = 2436]
2. Molecular-sieve filtration chromatography [Option ID = 2435]
3. Agarose Gel electrophoresis [Option ID = 2434]
4. CsCl density gradient centrifugation [Option ID = 2433]
Correct Answer :-
CsCl density gradient centrifugation [Option ID = 2433]
Which of the following molecule is most abundant in living system?
[Question ID = 608]
1. Water [Option ID = 2432]
2. Cellulose [Option ID = 2430]
3. Protein [Option ID = 2429]
4. Starch [Option ID = 2431]
Correct Answer :-
Water [Option ID = 2432]
Which system is active under stress?
[Question ID = 536]
1. Sympathetic nervous system [Option ID = 2142]
2. Somatic nervous system [Option ID = 2143]
3. Parasympathetic nervous system [Option ID = 2141]
4. Complete autonomic nervous system [Option ID = 2144]
Correct Answer :-
Sympathetic nervous system [Option ID = 2142]
Which is the first National park established in India:
[Question ID = 583]
1. Jim Corbet National Park [Option ID = 2329]
2. Periyar National Park [Option ID = 2332]
3. Kanziranga National Park [Option ID = 2330]
4. Kanha National Park [Option ID = 2331]
Correct Answer :-
Jim Corbet National Park [Option ID = 2329]
Doubling time for E. coli is 20 min. If the initial number of bacterium in a culture is 100, what would be number of bacterium after 60
min. [Question ID = 606]
1. 300 [Option ID = 2422]
2. 400 [Option ID = 2423]
3. 100 [Option ID = 2421]
4. 800 [Option ID = 2424]
12)
13)
14)
15)
16)
17)
Correct Answer :-
800 [Option ID = 2424]
X-chromosome inactivation
[Question ID = 527]
1. Is the cause of the y chromosome being genetically inactive [Option ID = 2106]
2. Takes place in humans so that the same X chromosome is inactive in all the cells of a female [Option ID = 2107]
3. Normally takes place in males but not in females [Option ID = 2105]
4. Results in genetically turning off one of the two X chromosome in female mammals [Option ID = 2108]
Correct Answer :-
Results in genetically turning off one of the two X chromosome in female mammals [Option ID = 2108]
In ecological succession from pioneer to climax community, the biomass shall:
[Question ID = 584]
1. Increase and then decrease [Option ID = 2334]
2. Increase continuously [Option ID = 2336]
3. Decrease [Option ID = 2333]
4. No relation [Option ID = 2335]
Correct Answer :-
Increase continuously [Option ID = 2336]
Import of glucose by the liver cell:
[Question ID = 569]
1. Is dependent on hydrolysis of ATP [Option ID = 2273]
2. Is facilitated by GLUT2 [Option ID = 2276]
3. Occurs throughout the phospholipid bilayer [Option ID = 2275]
4. Requires expression of GLUT1 on the plasma membrane [Option ID = 2274]
Correct Answer :-
Is facilitated by GLUT2 [Option ID = 2276]
The origin of the jaw in the gnathostomes is the
[Question ID = 524]
1. hyoid [Option ID = 2096]
2. gill arch [Option ID = 2093]
3. notochord [Option ID = 2095]
4. bones supporting the cranium [Option ID = 2094]
Correct Answer :-
gill arch [Option ID = 2093]
The dynamics of which cytoskeletal element changes in a moving amoeba?
[Question ID = 568]
1. Intermediate filaments [Option ID = 2271]
2. MreB [Option ID = 2272]
3. Microtubules [Option ID = 2269]
4. Microfilaments [Option ID = 2270]
Correct Answer :-
Microfilaments [Option ID = 2270]
Repeat core sequences consisting of 2, 3, or 4 base pairs are known as what?
[Question ID = 531]
18)
19)
20)
21)
22)
1. Single nucleotide polymorphisms (SNPs) [Option ID = 2121]
2. Minisatellites [Option ID = 2123]
3. Telomeres [Option ID = 2124]
4. Microsatellites [Option ID = 2122]
Correct Answer :-
Microsatellites [Option ID = 2122]
A haltere is a
[Question ID = 551]
1. Device used by a male insect to attract female for mating [Option ID = 2204]
2. balancing organ of housefly [Option ID = 2203]
3. sense organ of butterfly [Option ID = 2201]
4. modified forewing of beetle [Option ID = 2202]
Correct Answer :-
balancing organ of housefly [Option ID = 2203]
Linolenic (C18: 9,12,15) is an essential fatty acid for human because:
[Question ID = 555]
1. Lenolenic acid is available in fruits [Option ID = 2217]
2. Lenolenic acid gives much energy that palmitic acid [Option ID = 2219]
3. It is unsaturated fatty acid [Option ID = 2220]
4. Human cannot introduce double bond beyond 9-10 carbon of fatty acids [Option ID = 2218]
Correct Answer :-
Human cannot introduce double bond beyond 9-10 carbon of fatty acids [Option ID = 2218]
Passive immunity is obtained by:
[Question ID = 589]
1. Injecting the serum of another animal/individual containing antitoxin [Option ID = 2354]
2. Our own body cells preparing antibodies [Option ID = 2353]
3. Blood transfusion and blood clotting [Option ID = 2356]
4. Drinking medicinal concoctions [Option ID = 2355]
Correct Answer :-
Injecting the serum of another animal/individual containing antitoxin [Option ID = 2354]
2-amino-3 hydroxy propionic acid is the chemical name for which of the following amino acid:
[Question ID = 580]
1. serine [Option ID = 2320]
2. valine [Option ID = 2319]
3. glycine [Option ID = 2317]
4. alanine [Option ID = 2318]
Correct Answer :-
serine [Option ID = 2320]
Low pH of the lysosomal compartment is maintained by
[Question ID = 613]
1. Glycolysis [Option ID = 2452]
2. Electron transport chain [Option ID = 2449]
3. Proton ATPase at the membrane [Option ID = 2450]
4. Luminal acid production [Option ID = 2451]
Correct Answer :-
Proton ATPase at the membrane [Option ID = 2450]
23)
24)
25)
26)
27)
28)
Kidney of the vertebrate embryo develops from:
[Question ID = 591]
1. Mesoderm [Option ID = 2363]
2. Archenteron [Option ID = 2364]
3. Endoderm [Option ID = 2362]
4. Ectoderm [Option ID = 2361]
Correct Answer :-
Mesoderm [Option ID = 2363]
DNA is genetic material in
[Question ID = 563]
1. Only eukaryotes [Option ID = 2251]
2. Only Prokaryotes and eukaryotes [Option ID = 2250]
3. All viruses, prokaryotes, eukaryotes [Option ID = 2249]
4. Some viruses, all prokaryotes and eukaryotes [Option ID = 2252]
Correct Answer :-
Some viruses, all prokaryotes and eukaryotes [Option ID = 2252]
Which of the following statement is NOT TRUE for a competitive inhibitor in an enzyme catalysed reaction?
[Question ID = 600]
1. Their inhibition can be reversed by increasing the substrate concentration [Option ID = 2400]
2. They compete with substrate for binding to the active site. [Option ID = 2398]
3. They are structural analogues of the substrate. [Option ID = 2397]
4. They increase the Km, and decrease the Vmax. [Option ID = 2399]
Correct Answer :-
They increase the Km, and decrease the Vmax. [Option ID = 2399]
Knee joint is a
[Question ID = 548]
1. fibrous joint [Option ID = 2192]
2. cartilaginous joint [Option ID = 2191]
3. collagenous joint [Option ID = 2189]
4. synovial joint [Option ID = 2190]
Correct Answer :-
synovial joint [Option ID = 2190]
The heaviest organelle in cell is:
[Question ID = 556]
1. Lysosomes [Option ID = 2223]
2. Ribosomes [Option ID = 2224]
3. Nucleus [Option ID = 2222]
4. Mitochondria [Option ID = 2221]
Correct Answer :-
Nucleus [Option ID = 2222]
Wallace?s line is present in between
[Question ID = 544]
1. Oriental and Australian regions [Option ID = 2173]
2. Palaearctic and Ethiopian regions [Option ID = 2176]
3. Neotropical and Nearctic regions [Option ID = 2175]
4. Ethiopian and Oriental regions [Option ID = 2174]
29)
30)
31)
32)
33)
34)
Correct Answer :-
Oriental and Australian regions [Option ID = 2173]
In bivalves, which structure secretes pearl?
[Question ID = 598]
1. Nacreous gland. [Option ID = 2392]
2. Nacreous layer [Option ID = 2391]
3. Prismatic layer [Option ID = 2390]
4. Periostracum layer [Option ID = 2389]
Correct Answer :-
Nacreous layer [Option ID = 2391]
Ampicillin inhibits:
[Question ID = 559]
1. Cell wall synthesis in bacterial cells [Option ID = 2236]
2. RNA synthesis in Bacterial cells [Option ID = 2234]
3. DNA synthesis in bacterial cells [Option ID = 2233]
4. Protein synthesis in mammalian cell [Option ID = 2235]
Correct Answer :-
Cell wall synthesis in bacterial cells [Option ID = 2236]
Hiccups can be best described as ___________.
[Question ID = 534]
1. sign of somebody remembering you [Option ID = 2136]
2. vibration of the soft palate during breathing while sleeping [Option ID = 2135]
3. jerky incomplete inspiration [Option ID = 2134]
4. forceful sudden expiration [Option ID = 2133]
Correct Answer :-
jerky incomplete inspiration [Option ID = 2134]
At Isoelectric pH the charge on protein is:
[Question ID = 553]
1. Positive charge on protein [Option ID = 2210]
2. Negative charge on protein [Option ID = 2211]
3. No charge on protein [Option ID = 2209]
4. Net charge on protein is zero [Option ID = 2212]
Correct Answer :-
Net charge on protein is zero [Option ID = 2212]
Lac is a material which is
[Question ID = 552]
1. hardened fecal matter of lac insect [Option ID = 2205]
2. protective secretion deposited by female lac insect [Option ID = 2206]
3. protective covering secreted by larva [Option ID = 2207]
4. resin secreted by the plant [Option ID = 2208]
Correct Answer :-
protective secretion deposited by female lac insect [Option ID = 2206]
Hardy-Weinberg?s law gives the concept of
[Question ID = 586]
35)
36)
37)
38)
39)
1. natural selection. [Option ID = 2344]
2. genetic drift [Option ID = 2341]
3. genetic equilibrium [Option ID = 2343]
4. mutation [Option ID = 2342]
Correct Answer :-
genetic equilibrium [Option ID = 2343]
The vertical migration of plankton is an instance of
[Question ID = 579]
1. Circadian rythmes [Option ID = 2313]
2. Circannual rythmes [Option ID = 2314]
3. photopriodism [Option ID = 2315]
4. photokinesis. [Option ID = 2316]
Correct Answer :-
Circadian rythmes [Option ID = 2313]
Treadmilling of actin filaments in the steady state occurs at G-actin concentration
[Question ID = 565]
1. Below the Cc of the (-) end [Option ID = 2257]
2. Above the Cc of the (-) end but below the Cc of the (+) end [Option ID = 2259]
3. Above the Cc of the (+) end but below the Cc of the (-) end [Option ID = 2260]
4. Above the Cc of the (+) end [Option ID = 2258]
Correct Answer :-
Above the Cc of the (+) end but below the Cc of the (-) end [Option ID = 2260]
Exon skipping is associated with:
[Question ID = 528]
1. regulatory mutations [Option ID = 2110]
2. RNA processing mutations [Option ID = 2111]
3. nonsense mutations [Option ID = 2109]
4. silent mutations [Option ID = 2112]
Correct Answer :-
RNA processing mutations [Option ID = 2111]
Bile is produced in our body which
[Question ID = 557]
1. Act as a surfactant to emulsify lipids in intestine. [Option ID = 2226]
2. It has no role associated with our body [Option ID = 2228]
3. Helps in digestion of starch in intestinbe [Option ID = 2227]
4. Helps in controlling blood pressure [Option ID = 2225]
Correct Answer :-
Act as a surfactant to emulsify lipids in intestine. [Option ID = 2226]
The inner cell mass of mammalian blastocyst develops into,
[Question ID = 578]
1. all embryonic structures [Option ID = 2311]
2. embryonic endoderm [Option ID = 2309]
3. chorio-allantoic placenta [Option ID = 2312]
4. yolk-sac placenta [Option ID = 2310]
Correct Answer :-
all embryonic structures [Option ID = 2311]
40)
41)
42)
43)
44)
45)
The isoform/s of actin present in muscle cells
[Question ID = 566]
1. beta-actin [Option ID = 2263]
2. beta-and gamma-actin [Option ID = 2264]
3. alpha-actin [Option ID = 2261]
4. alpha and beta-actin [Option ID = 2262]
Correct Answer :-
alpha-actin [Option ID = 2261]
The four postulates of the Chemiosmotic hypothesis accounted for:
[Question ID = 574]
1. ETC, F1-F0 ATPase, cardiolipin and pmf generators [Option ID = 2295]
2. ETC, F1-F0 ATPase, cardiolipin and anion exchangers [Option ID = 2296]
3. Cardiolipin [Option ID = 2294]
4. The four complexes of the electron transport chain (ETC). [Option ID = 2293]
Correct Answer :-
ETC, F1-F0 ATPase, cardiolipin and anion exchangers [Option ID = 2296]
Cilia and flagella contains a contractile protein called:
[Question ID = 575]
1. Myosin [Option ID = 2300]
2. Tubulin [Option ID = 2298]
3. Actin [Option ID = 2299]
4. Dyenin [Option ID = 2297]
Correct Answer :-
Dyenin [Option ID = 2297]
Insects such as Drosophila undergo three molts before undergoing metamorphosis. Molting is controlled by which of the following
hormone?
[Question ID = 532]
1. juvenile hormone [Option ID = 2126]
2. growth hormone [Option ID = 2128]
3. auxin [Option ID = 2127]
4. ecdysone [Option ID = 2125]
Correct Answer :-
ecdysone [Option ID = 2125]
Injection of anti-venom to a patient for snake bite is an example of
[Question ID = 562]
1. Artificially acquired active immunity [Option ID = 2246]
2. Artificially acquired passive immunity [Option ID = 2248]
3. Naturally acquired active immunity [Option ID = 2245]
4. Naturally acquired passive immunity [Option ID = 2247]
Correct Answer :-
Artificially acquired passive immunity [Option ID = 2248]
Steroid hormones are synthesized from
[Question ID = 558]
1. Glycogen [Option ID = 2232]
2. Tryptophan [Option ID = 2229]
3. Stearic acid [Option ID = 2231]
4. Cholesterol [Option ID = 2230]
46)
47)
48)
49)
50)
51)
Correct Answer :-
Cholesterol [Option ID = 2230]
When a heterozygous offspring is crossed to homozygous recessive parent, it is called as
[Question ID = 533]
1. Test cross [Option ID = 2129]
2. Reciprocal cross [Option ID = 2130]
3. Dihybrid cross [Option ID = 2132]
4. Monohybrid cross [Option ID = 2131]
Correct Answer :-
Test cross [Option ID = 2129]
Identify the statement that is NOT TRUE for Iron-sulphur clusters
[Question ID = 573]
1. These are prosthetic groups of succinate-coenzyme Q reductase complex. [Option ID = 2289]
2. These accept and release electrons one at a time [Option ID = 2291]
3. They contain Fe bonded to inorganic S atoms and S atoms on cysteine residues of proteins [Option ID = 2290]
4. They are always associated with cytochromes. [Option ID = 2292]
Correct Answer :-
They are always associated with cytochromes. [Option ID = 2292]
Of the early fish, which led to the extant fish of today?
[Question ID = 525]
1. cephalochordates [Option ID = 2099]
2. acanthodians [Option ID = 2100]
3. placoderms [Option ID = 2098]
4. heterostracans [Option ID = 2097]
Correct Answer :-
acanthodians [Option ID = 2100]
Water is a good solvent for inorganic salts because
[Question ID = 615]
1. hydrogen bond [Option ID = 2459]
2. dielectric constant [Option ID = 2457]
3. polarity [Option ID = 2458]
4. conductivity [Option ID = 2460]
Correct Answer :-
If the sequence of coding strand in a transcription unit is as follows: 5?-GAATTGCCAATTGCAGTC-3?, the sequence of mRNA
transcribed from the transcription unit would be, [Question ID = 604]
1. 3?-GAAUUGCCAAUUGCAGUC-5? [Option ID = 2416]
2. 5?-CUUAACGGUUAACGUCAG-3? [Option ID = 2414]
3. 5?-GAAUUGCCAAUUGCAGUC-3? [Option ID = 2413]
4. 5?-GACUGCAAUUGGCAAUUC-3? [Option ID = 2415]
Correct Answer :-
5?-GAAUUGCCAAUUGCAGUC-3? [Option ID = 2413]
In a Robertsonian translocation fusion occurs at the:
[Question ID = 529]
1. centromeres [Option ID = 2114]
2. histones [Option ID = 2115]
3. telomeres [Option ID = 2113]
52)
53)
54)
55)
56)
57)
4. ends of the long arms [Option ID = 2116]
Correct Answer :-
centromeres [Option ID = 2114]
Symporters are cotransporters that transport:
[Question ID = 570]
1. Cations and anions in the opposite direction. [Option ID = 2278]
2. Glucose against its concentration gradient. [Option ID = 2280]
3. Small molecules and gases in the same direction. [Option ID = 2277]
4. Na+ ions and glucose against the concentration gradient. [Option ID = 2279]
Correct Answer :-
Glucose against its concentration gradient. [Option ID = 2280]
Bidirectional movement of vesicles requires
[Question ID = 567]
1. Kinesin I [Option ID = 2265]
2. Association of (+) and (-) end-directed motors [Option ID = 2268]
3. A flexible neck region on the motor protein [Option ID = 2267]
4. Microtubules and microfilaments [Option ID = 2266]
Correct Answer :-
Association of (+) and (-) end-directed motors [Option ID = 2268]
Pharyngeal gill slits
[Question ID = 521]
1. are not found in protochordates, but are present in vertebrates, at least during the embryonic life [Option ID = 2084]
2. are found in higher inverterates and vertebrates [Option ID = 2083]
3. are found in fishes, crabs, snails, aquatic insects [Option ID = 2082]
4. are unique chordate characteristic [Option ID = 2081]
Correct Answer :-
are unique chordate characteristic [Option ID = 2081]
Three pg of a hypothetical protein-X is present in a cell. How many molecules of protein-X would be present in a cell, if the molecular
weight of the protein is 30000? (Given, Avogaro?s number is 6 x 10
23
)
[Question ID = 610]
1. 6 x 10
15
[Option ID = 2439]
2. 6 x 10
7
[Option ID = 2438]
3. 6 x 10
23
[Option ID = 2440]
4. 6 x 10
6
[Option ID = 2437]
Correct Answer :-
6 x 10
7
[Option ID = 2438]
Ciliated pseudostratified columnar epithelia are found in
[Question ID = 537]
1. membranous part of male vas deferens [Option ID = 2147]
2. linings of the trachea & upper respiratory tract [Option ID = 2146]
3. lining of the trachea [Option ID = 2145]
4. Vagina [Option ID = 2148]
Correct Answer :-
linings of the trachea & upper respiratory tract [Option ID = 2146]
In vertebrates, which one of the following structures is believed to have been transformed into thyroid gland? [Question ID = 592]
58)
59)
60)
61)
62)
63)
1. Pygostyle [Option ID = 2365]
2. Analstyle [Option ID = 2367]
3. Endostyle [Option ID = 2368]
4. Urostyle [Option ID = 2366]
Correct Answer :-
Endostyle [Option ID = 2368]
DNA double helix is stabilized by: [Question ID = 602]
1. Hydrophobic interactions only [Option ID = 2408]
2. H-bonds only [Option ID = 2405]
3. H-bonds and base stacking interactions [Option ID = 2406]
4. Electrostatic interactions [Option ID = 2407]
Correct Answer :-
H-bonds and base stacking interactions [Option ID = 2406]
Three forms of Daphnia are found in varying seasons. This phenomenon is called: [Question ID = 593]
1. Poly morphism [Option ID = 2369]
2. Seasonal peroidicity [Option ID = 2371]
3. Adaptation [Option ID = 2372]
4. Cyclomorphism [Option ID = 2370]
Correct Answer :-
Cyclomorphism [Option ID = 2370]
A gene showing co-dominance
[Question ID = 526]
1. Has alleles tightly linked on the same chromosome [Option ID = 2103]
2. Has alleles expressed at the same time in development [Option ID = 2104]
3. Has one allele dominant to the other [Option ID = 2101]
4. Has both alleles independently expressed in heterozygote [Option ID = 2102]
Correct Answer :-
Has both alleles independently expressed in heterozygote [Option ID = 2102]
If the atrioventricular node could be surgically removed from the heart without disrupting signal transmission to bundle of His,
then?
[Question ID = 587]
1. atria & ventricle would contract almost simultaneously [Option ID = 2348]
2. the heart rate would be decreased. [Option ID = 2345]
3. only artia would contract. [Option ID = 2346]
4. only ventricle would contract. [Option ID = 2347]
Correct Answer :-
atria & ventricle would contract almost simultaneously [Option ID = 2348]
A double stranded DNA has 30 mole percent of cytosine. What would be the mole percent of adenine in it?
[Question ID = 605]
1. 40 [Option ID = 2419]
2. 20 [Option ID = 2417]
3. 60 [Option ID = 2420]
4. 30 [Option ID = 2418]
Correct Answer :-
20 [Option ID = 2417]
A protein having both structural and enzymatic properties is
[Question ID = 535]
64)
65)
66)
67)
68)
69)
1. Histone [Option ID = 2140]
2. Trypsin [Option ID = 2138]
3. Myosin [Option ID = 2139]
4. Collagen [Option ID = 2137]
Correct Answer :-
Myosin [Option ID = 2139]
Bilateral symmetry in certain group of Phylum Mollusca is lost due to
[Question ID = 595]
1. reversion and rotation [Option ID = 2379]
2. expansion and torsion [Option ID = 2380]
3. torsion [Option ID = 2378]
4. rotation [Option ID = 2377]
Correct Answer :-
torsion [Option ID = 2378]
Bilaterally symmetrical, acoelomate organisms are:
[Question ID = 577]
1. platyhelminthes [Option ID = 2306]
2. sponges [Option ID = 2305]
3. acinadia [Option ID = 2308]
4. nemathelminthes [Option ID = 2307]
Correct Answer :-
platyhelminthes [Option ID = 2306]
Honey bee society is [Question ID = 549]
1. Eusocial [Option ID = 2196]
2. Subsocial [Option ID = 2195]
3. Communal [Option ID = 2193]
4. Parasocial [Option ID = 2194]
Correct Answer :-
Eusocial [Option ID = 2196]
DNA finger-printing employs
[Question ID = 588]
1. pseudo-genes as probes. [Option ID = 2352]
2. unique and house-keeping genes as probes [Option ID = 2349]
3. variable number tandem repeats as probes [Option ID = 2351]
4. specific metabolic genes as probes [Option ID = 2350]
Correct Answer :-
variable number tandem repeats as probes [Option ID = 2351]
BLAST program is used in
[Question ID = 564]
1. DNA sequencing [Option ID = 2253]
2. DNA bar coding [Option ID = 2255]
3. Amino Acid sequencing [Option ID = 2254]
4. Bioinformatics [Option ID = 2256]
Correct Answer :-
Bioinformatics [Option ID = 2256]
Hemophilia is an example of a trait that is carried as a ____________________.
FirstRanker.com - FirstRanker's Choice
1)
2)
3)
4)
5)
DU MSc Zoology
Topic:- DU_J18_MSC_ZOO
Which of the following is NOT a characteristic of lakes suffering from organic pollution?
[Question ID = 582]
1. High microbial concentration [Option ID = 2325]
2. High biochemical oxygen demand [Option ID = 2327]
3. Low phosphate levels [Option ID = 2328]
4. Frequent algal blooms [Option ID = 2326]
Correct Answer :-
Low phosphate levels [Option ID = 2328]
Which of the following was probably absent at the time of origin of life ?
[Question ID = 546]
1. Oxygen [Option ID = 2182]
2. Hydrogen [Option ID = 2181]
3. Methane [Option ID = 2183]
4. Carbon dioxide [Option ID = 2184]
Correct Answer :-
Oxygen [Option ID = 2182]
Which of the following genotypes causes Klinefelter syndrome?
[Question ID = 530]
1. XYY [Option ID = 2120]
2. XO [Option ID = 2117]
3. XXY [Option ID = 2118]
4. XX [Option ID = 2119]
Correct Answer :-
XXY [Option ID = 2118]
Which of the following is wrong match for enzyme classification?
[Question ID = 601]
1. EC 2 ? Trasnferases [Option ID = 2402]
2. EC 3- Hydrolases [Option ID = 2403]
3. EC 1 - Oxidoreductases [Option ID = 2401]
4. EC 4- Ligases [Option ID = 2404]
Correct Answer :-
EC 4- Ligases [Option ID = 2404]
Which of the following is not a possible explanation for the rapid rate of evolution of beak shape in Darwin?s finches?
[Question ID = 614]
1. Strong selection pressure [Option ID = 2455]
2. Small population size [Option ID = 2456]
3. High mutation rate [Option ID = 2453]
4. High emigrations and immigration rate [Option ID = 2454]
Correct Answer :-
High mutation rate [Option ID = 2453]
6)
7)
8)
9)
10)
11)
Which of the following animals is primarily an ectotherm?
[Question ID = 542]
1. Hawk [Option ID = 2165]
2. Lizard [Option ID = 2166]
3. Elephant [Option ID = 2168]
4. Shrew [Option ID = 2167]
Correct Answer :-
Lizard [Option ID = 2166]
Which of the following technique was used by Messelon and Stahl to separate DNA labeled with 15
N
from 14
N
?
[Question ID = 609]
1. Ion-exchange chromatography [Option ID = 2436]
2. Molecular-sieve filtration chromatography [Option ID = 2435]
3. Agarose Gel electrophoresis [Option ID = 2434]
4. CsCl density gradient centrifugation [Option ID = 2433]
Correct Answer :-
CsCl density gradient centrifugation [Option ID = 2433]
Which of the following molecule is most abundant in living system?
[Question ID = 608]
1. Water [Option ID = 2432]
2. Cellulose [Option ID = 2430]
3. Protein [Option ID = 2429]
4. Starch [Option ID = 2431]
Correct Answer :-
Water [Option ID = 2432]
Which system is active under stress?
[Question ID = 536]
1. Sympathetic nervous system [Option ID = 2142]
2. Somatic nervous system [Option ID = 2143]
3. Parasympathetic nervous system [Option ID = 2141]
4. Complete autonomic nervous system [Option ID = 2144]
Correct Answer :-
Sympathetic nervous system [Option ID = 2142]
Which is the first National park established in India:
[Question ID = 583]
1. Jim Corbet National Park [Option ID = 2329]
2. Periyar National Park [Option ID = 2332]
3. Kanziranga National Park [Option ID = 2330]
4. Kanha National Park [Option ID = 2331]
Correct Answer :-
Jim Corbet National Park [Option ID = 2329]
Doubling time for E. coli is 20 min. If the initial number of bacterium in a culture is 100, what would be number of bacterium after 60
min. [Question ID = 606]
1. 300 [Option ID = 2422]
2. 400 [Option ID = 2423]
3. 100 [Option ID = 2421]
4. 800 [Option ID = 2424]
12)
13)
14)
15)
16)
17)
Correct Answer :-
800 [Option ID = 2424]
X-chromosome inactivation
[Question ID = 527]
1. Is the cause of the y chromosome being genetically inactive [Option ID = 2106]
2. Takes place in humans so that the same X chromosome is inactive in all the cells of a female [Option ID = 2107]
3. Normally takes place in males but not in females [Option ID = 2105]
4. Results in genetically turning off one of the two X chromosome in female mammals [Option ID = 2108]
Correct Answer :-
Results in genetically turning off one of the two X chromosome in female mammals [Option ID = 2108]
In ecological succession from pioneer to climax community, the biomass shall:
[Question ID = 584]
1. Increase and then decrease [Option ID = 2334]
2. Increase continuously [Option ID = 2336]
3. Decrease [Option ID = 2333]
4. No relation [Option ID = 2335]
Correct Answer :-
Increase continuously [Option ID = 2336]
Import of glucose by the liver cell:
[Question ID = 569]
1. Is dependent on hydrolysis of ATP [Option ID = 2273]
2. Is facilitated by GLUT2 [Option ID = 2276]
3. Occurs throughout the phospholipid bilayer [Option ID = 2275]
4. Requires expression of GLUT1 on the plasma membrane [Option ID = 2274]
Correct Answer :-
Is facilitated by GLUT2 [Option ID = 2276]
The origin of the jaw in the gnathostomes is the
[Question ID = 524]
1. hyoid [Option ID = 2096]
2. gill arch [Option ID = 2093]
3. notochord [Option ID = 2095]
4. bones supporting the cranium [Option ID = 2094]
Correct Answer :-
gill arch [Option ID = 2093]
The dynamics of which cytoskeletal element changes in a moving amoeba?
[Question ID = 568]
1. Intermediate filaments [Option ID = 2271]
2. MreB [Option ID = 2272]
3. Microtubules [Option ID = 2269]
4. Microfilaments [Option ID = 2270]
Correct Answer :-
Microfilaments [Option ID = 2270]
Repeat core sequences consisting of 2, 3, or 4 base pairs are known as what?
[Question ID = 531]
18)
19)
20)
21)
22)
1. Single nucleotide polymorphisms (SNPs) [Option ID = 2121]
2. Minisatellites [Option ID = 2123]
3. Telomeres [Option ID = 2124]
4. Microsatellites [Option ID = 2122]
Correct Answer :-
Microsatellites [Option ID = 2122]
A haltere is a
[Question ID = 551]
1. Device used by a male insect to attract female for mating [Option ID = 2204]
2. balancing organ of housefly [Option ID = 2203]
3. sense organ of butterfly [Option ID = 2201]
4. modified forewing of beetle [Option ID = 2202]
Correct Answer :-
balancing organ of housefly [Option ID = 2203]
Linolenic (C18: 9,12,15) is an essential fatty acid for human because:
[Question ID = 555]
1. Lenolenic acid is available in fruits [Option ID = 2217]
2. Lenolenic acid gives much energy that palmitic acid [Option ID = 2219]
3. It is unsaturated fatty acid [Option ID = 2220]
4. Human cannot introduce double bond beyond 9-10 carbon of fatty acids [Option ID = 2218]
Correct Answer :-
Human cannot introduce double bond beyond 9-10 carbon of fatty acids [Option ID = 2218]
Passive immunity is obtained by:
[Question ID = 589]
1. Injecting the serum of another animal/individual containing antitoxin [Option ID = 2354]
2. Our own body cells preparing antibodies [Option ID = 2353]
3. Blood transfusion and blood clotting [Option ID = 2356]
4. Drinking medicinal concoctions [Option ID = 2355]
Correct Answer :-
Injecting the serum of another animal/individual containing antitoxin [Option ID = 2354]
2-amino-3 hydroxy propionic acid is the chemical name for which of the following amino acid:
[Question ID = 580]
1. serine [Option ID = 2320]
2. valine [Option ID = 2319]
3. glycine [Option ID = 2317]
4. alanine [Option ID = 2318]
Correct Answer :-
serine [Option ID = 2320]
Low pH of the lysosomal compartment is maintained by
[Question ID = 613]
1. Glycolysis [Option ID = 2452]
2. Electron transport chain [Option ID = 2449]
3. Proton ATPase at the membrane [Option ID = 2450]
4. Luminal acid production [Option ID = 2451]
Correct Answer :-
Proton ATPase at the membrane [Option ID = 2450]
23)
24)
25)
26)
27)
28)
Kidney of the vertebrate embryo develops from:
[Question ID = 591]
1. Mesoderm [Option ID = 2363]
2. Archenteron [Option ID = 2364]
3. Endoderm [Option ID = 2362]
4. Ectoderm [Option ID = 2361]
Correct Answer :-
Mesoderm [Option ID = 2363]
DNA is genetic material in
[Question ID = 563]
1. Only eukaryotes [Option ID = 2251]
2. Only Prokaryotes and eukaryotes [Option ID = 2250]
3. All viruses, prokaryotes, eukaryotes [Option ID = 2249]
4. Some viruses, all prokaryotes and eukaryotes [Option ID = 2252]
Correct Answer :-
Some viruses, all prokaryotes and eukaryotes [Option ID = 2252]
Which of the following statement is NOT TRUE for a competitive inhibitor in an enzyme catalysed reaction?
[Question ID = 600]
1. Their inhibition can be reversed by increasing the substrate concentration [Option ID = 2400]
2. They compete with substrate for binding to the active site. [Option ID = 2398]
3. They are structural analogues of the substrate. [Option ID = 2397]
4. They increase the Km, and decrease the Vmax. [Option ID = 2399]
Correct Answer :-
They increase the Km, and decrease the Vmax. [Option ID = 2399]
Knee joint is a
[Question ID = 548]
1. fibrous joint [Option ID = 2192]
2. cartilaginous joint [Option ID = 2191]
3. collagenous joint [Option ID = 2189]
4. synovial joint [Option ID = 2190]
Correct Answer :-
synovial joint [Option ID = 2190]
The heaviest organelle in cell is:
[Question ID = 556]
1. Lysosomes [Option ID = 2223]
2. Ribosomes [Option ID = 2224]
3. Nucleus [Option ID = 2222]
4. Mitochondria [Option ID = 2221]
Correct Answer :-
Nucleus [Option ID = 2222]
Wallace?s line is present in between
[Question ID = 544]
1. Oriental and Australian regions [Option ID = 2173]
2. Palaearctic and Ethiopian regions [Option ID = 2176]
3. Neotropical and Nearctic regions [Option ID = 2175]
4. Ethiopian and Oriental regions [Option ID = 2174]
29)
30)
31)
32)
33)
34)
Correct Answer :-
Oriental and Australian regions [Option ID = 2173]
In bivalves, which structure secretes pearl?
[Question ID = 598]
1. Nacreous gland. [Option ID = 2392]
2. Nacreous layer [Option ID = 2391]
3. Prismatic layer [Option ID = 2390]
4. Periostracum layer [Option ID = 2389]
Correct Answer :-
Nacreous layer [Option ID = 2391]
Ampicillin inhibits:
[Question ID = 559]
1. Cell wall synthesis in bacterial cells [Option ID = 2236]
2. RNA synthesis in Bacterial cells [Option ID = 2234]
3. DNA synthesis in bacterial cells [Option ID = 2233]
4. Protein synthesis in mammalian cell [Option ID = 2235]
Correct Answer :-
Cell wall synthesis in bacterial cells [Option ID = 2236]
Hiccups can be best described as ___________.
[Question ID = 534]
1. sign of somebody remembering you [Option ID = 2136]
2. vibration of the soft palate during breathing while sleeping [Option ID = 2135]
3. jerky incomplete inspiration [Option ID = 2134]
4. forceful sudden expiration [Option ID = 2133]
Correct Answer :-
jerky incomplete inspiration [Option ID = 2134]
At Isoelectric pH the charge on protein is:
[Question ID = 553]
1. Positive charge on protein [Option ID = 2210]
2. Negative charge on protein [Option ID = 2211]
3. No charge on protein [Option ID = 2209]
4. Net charge on protein is zero [Option ID = 2212]
Correct Answer :-
Net charge on protein is zero [Option ID = 2212]
Lac is a material which is
[Question ID = 552]
1. hardened fecal matter of lac insect [Option ID = 2205]
2. protective secretion deposited by female lac insect [Option ID = 2206]
3. protective covering secreted by larva [Option ID = 2207]
4. resin secreted by the plant [Option ID = 2208]
Correct Answer :-
protective secretion deposited by female lac insect [Option ID = 2206]
Hardy-Weinberg?s law gives the concept of
[Question ID = 586]
35)
36)
37)
38)
39)
1. natural selection. [Option ID = 2344]
2. genetic drift [Option ID = 2341]
3. genetic equilibrium [Option ID = 2343]
4. mutation [Option ID = 2342]
Correct Answer :-
genetic equilibrium [Option ID = 2343]
The vertical migration of plankton is an instance of
[Question ID = 579]
1. Circadian rythmes [Option ID = 2313]
2. Circannual rythmes [Option ID = 2314]
3. photopriodism [Option ID = 2315]
4. photokinesis. [Option ID = 2316]
Correct Answer :-
Circadian rythmes [Option ID = 2313]
Treadmilling of actin filaments in the steady state occurs at G-actin concentration
[Question ID = 565]
1. Below the Cc of the (-) end [Option ID = 2257]
2. Above the Cc of the (-) end but below the Cc of the (+) end [Option ID = 2259]
3. Above the Cc of the (+) end but below the Cc of the (-) end [Option ID = 2260]
4. Above the Cc of the (+) end [Option ID = 2258]
Correct Answer :-
Above the Cc of the (+) end but below the Cc of the (-) end [Option ID = 2260]
Exon skipping is associated with:
[Question ID = 528]
1. regulatory mutations [Option ID = 2110]
2. RNA processing mutations [Option ID = 2111]
3. nonsense mutations [Option ID = 2109]
4. silent mutations [Option ID = 2112]
Correct Answer :-
RNA processing mutations [Option ID = 2111]
Bile is produced in our body which
[Question ID = 557]
1. Act as a surfactant to emulsify lipids in intestine. [Option ID = 2226]
2. It has no role associated with our body [Option ID = 2228]
3. Helps in digestion of starch in intestinbe [Option ID = 2227]
4. Helps in controlling blood pressure [Option ID = 2225]
Correct Answer :-
Act as a surfactant to emulsify lipids in intestine. [Option ID = 2226]
The inner cell mass of mammalian blastocyst develops into,
[Question ID = 578]
1. all embryonic structures [Option ID = 2311]
2. embryonic endoderm [Option ID = 2309]
3. chorio-allantoic placenta [Option ID = 2312]
4. yolk-sac placenta [Option ID = 2310]
Correct Answer :-
all embryonic structures [Option ID = 2311]
40)
41)
42)
43)
44)
45)
The isoform/s of actin present in muscle cells
[Question ID = 566]
1. beta-actin [Option ID = 2263]
2. beta-and gamma-actin [Option ID = 2264]
3. alpha-actin [Option ID = 2261]
4. alpha and beta-actin [Option ID = 2262]
Correct Answer :-
alpha-actin [Option ID = 2261]
The four postulates of the Chemiosmotic hypothesis accounted for:
[Question ID = 574]
1. ETC, F1-F0 ATPase, cardiolipin and pmf generators [Option ID = 2295]
2. ETC, F1-F0 ATPase, cardiolipin and anion exchangers [Option ID = 2296]
3. Cardiolipin [Option ID = 2294]
4. The four complexes of the electron transport chain (ETC). [Option ID = 2293]
Correct Answer :-
ETC, F1-F0 ATPase, cardiolipin and anion exchangers [Option ID = 2296]
Cilia and flagella contains a contractile protein called:
[Question ID = 575]
1. Myosin [Option ID = 2300]
2. Tubulin [Option ID = 2298]
3. Actin [Option ID = 2299]
4. Dyenin [Option ID = 2297]
Correct Answer :-
Dyenin [Option ID = 2297]
Insects such as Drosophila undergo three molts before undergoing metamorphosis. Molting is controlled by which of the following
hormone?
[Question ID = 532]
1. juvenile hormone [Option ID = 2126]
2. growth hormone [Option ID = 2128]
3. auxin [Option ID = 2127]
4. ecdysone [Option ID = 2125]
Correct Answer :-
ecdysone [Option ID = 2125]
Injection of anti-venom to a patient for snake bite is an example of
[Question ID = 562]
1. Artificially acquired active immunity [Option ID = 2246]
2. Artificially acquired passive immunity [Option ID = 2248]
3. Naturally acquired active immunity [Option ID = 2245]
4. Naturally acquired passive immunity [Option ID = 2247]
Correct Answer :-
Artificially acquired passive immunity [Option ID = 2248]
Steroid hormones are synthesized from
[Question ID = 558]
1. Glycogen [Option ID = 2232]
2. Tryptophan [Option ID = 2229]
3. Stearic acid [Option ID = 2231]
4. Cholesterol [Option ID = 2230]
46)
47)
48)
49)
50)
51)
Correct Answer :-
Cholesterol [Option ID = 2230]
When a heterozygous offspring is crossed to homozygous recessive parent, it is called as
[Question ID = 533]
1. Test cross [Option ID = 2129]
2. Reciprocal cross [Option ID = 2130]
3. Dihybrid cross [Option ID = 2132]
4. Monohybrid cross [Option ID = 2131]
Correct Answer :-
Test cross [Option ID = 2129]
Identify the statement that is NOT TRUE for Iron-sulphur clusters
[Question ID = 573]
1. These are prosthetic groups of succinate-coenzyme Q reductase complex. [Option ID = 2289]
2. These accept and release electrons one at a time [Option ID = 2291]
3. They contain Fe bonded to inorganic S atoms and S atoms on cysteine residues of proteins [Option ID = 2290]
4. They are always associated with cytochromes. [Option ID = 2292]
Correct Answer :-
They are always associated with cytochromes. [Option ID = 2292]
Of the early fish, which led to the extant fish of today?
[Question ID = 525]
1. cephalochordates [Option ID = 2099]
2. acanthodians [Option ID = 2100]
3. placoderms [Option ID = 2098]
4. heterostracans [Option ID = 2097]
Correct Answer :-
acanthodians [Option ID = 2100]
Water is a good solvent for inorganic salts because
[Question ID = 615]
1. hydrogen bond [Option ID = 2459]
2. dielectric constant [Option ID = 2457]
3. polarity [Option ID = 2458]
4. conductivity [Option ID = 2460]
Correct Answer :-
If the sequence of coding strand in a transcription unit is as follows: 5?-GAATTGCCAATTGCAGTC-3?, the sequence of mRNA
transcribed from the transcription unit would be, [Question ID = 604]
1. 3?-GAAUUGCCAAUUGCAGUC-5? [Option ID = 2416]
2. 5?-CUUAACGGUUAACGUCAG-3? [Option ID = 2414]
3. 5?-GAAUUGCCAAUUGCAGUC-3? [Option ID = 2413]
4. 5?-GACUGCAAUUGGCAAUUC-3? [Option ID = 2415]
Correct Answer :-
5?-GAAUUGCCAAUUGCAGUC-3? [Option ID = 2413]
In a Robertsonian translocation fusion occurs at the:
[Question ID = 529]
1. centromeres [Option ID = 2114]
2. histones [Option ID = 2115]
3. telomeres [Option ID = 2113]
52)
53)
54)
55)
56)
57)
4. ends of the long arms [Option ID = 2116]
Correct Answer :-
centromeres [Option ID = 2114]
Symporters are cotransporters that transport:
[Question ID = 570]
1. Cations and anions in the opposite direction. [Option ID = 2278]
2. Glucose against its concentration gradient. [Option ID = 2280]
3. Small molecules and gases in the same direction. [Option ID = 2277]
4. Na+ ions and glucose against the concentration gradient. [Option ID = 2279]
Correct Answer :-
Glucose against its concentration gradient. [Option ID = 2280]
Bidirectional movement of vesicles requires
[Question ID = 567]
1. Kinesin I [Option ID = 2265]
2. Association of (+) and (-) end-directed motors [Option ID = 2268]
3. A flexible neck region on the motor protein [Option ID = 2267]
4. Microtubules and microfilaments [Option ID = 2266]
Correct Answer :-
Association of (+) and (-) end-directed motors [Option ID = 2268]
Pharyngeal gill slits
[Question ID = 521]
1. are not found in protochordates, but are present in vertebrates, at least during the embryonic life [Option ID = 2084]
2. are found in higher inverterates and vertebrates [Option ID = 2083]
3. are found in fishes, crabs, snails, aquatic insects [Option ID = 2082]
4. are unique chordate characteristic [Option ID = 2081]
Correct Answer :-
are unique chordate characteristic [Option ID = 2081]
Three pg of a hypothetical protein-X is present in a cell. How many molecules of protein-X would be present in a cell, if the molecular
weight of the protein is 30000? (Given, Avogaro?s number is 6 x 10
23
)
[Question ID = 610]
1. 6 x 10
15
[Option ID = 2439]
2. 6 x 10
7
[Option ID = 2438]
3. 6 x 10
23
[Option ID = 2440]
4. 6 x 10
6
[Option ID = 2437]
Correct Answer :-
6 x 10
7
[Option ID = 2438]
Ciliated pseudostratified columnar epithelia are found in
[Question ID = 537]
1. membranous part of male vas deferens [Option ID = 2147]
2. linings of the trachea & upper respiratory tract [Option ID = 2146]
3. lining of the trachea [Option ID = 2145]
4. Vagina [Option ID = 2148]
Correct Answer :-
linings of the trachea & upper respiratory tract [Option ID = 2146]
In vertebrates, which one of the following structures is believed to have been transformed into thyroid gland? [Question ID = 592]
58)
59)
60)
61)
62)
63)
1. Pygostyle [Option ID = 2365]
2. Analstyle [Option ID = 2367]
3. Endostyle [Option ID = 2368]
4. Urostyle [Option ID = 2366]
Correct Answer :-
Endostyle [Option ID = 2368]
DNA double helix is stabilized by: [Question ID = 602]
1. Hydrophobic interactions only [Option ID = 2408]
2. H-bonds only [Option ID = 2405]
3. H-bonds and base stacking interactions [Option ID = 2406]
4. Electrostatic interactions [Option ID = 2407]
Correct Answer :-
H-bonds and base stacking interactions [Option ID = 2406]
Three forms of Daphnia are found in varying seasons. This phenomenon is called: [Question ID = 593]
1. Poly morphism [Option ID = 2369]
2. Seasonal peroidicity [Option ID = 2371]
3. Adaptation [Option ID = 2372]
4. Cyclomorphism [Option ID = 2370]
Correct Answer :-
Cyclomorphism [Option ID = 2370]
A gene showing co-dominance
[Question ID = 526]
1. Has alleles tightly linked on the same chromosome [Option ID = 2103]
2. Has alleles expressed at the same time in development [Option ID = 2104]
3. Has one allele dominant to the other [Option ID = 2101]
4. Has both alleles independently expressed in heterozygote [Option ID = 2102]
Correct Answer :-
Has both alleles independently expressed in heterozygote [Option ID = 2102]
If the atrioventricular node could be surgically removed from the heart without disrupting signal transmission to bundle of His,
then?
[Question ID = 587]
1. atria & ventricle would contract almost simultaneously [Option ID = 2348]
2. the heart rate would be decreased. [Option ID = 2345]
3. only artia would contract. [Option ID = 2346]
4. only ventricle would contract. [Option ID = 2347]
Correct Answer :-
atria & ventricle would contract almost simultaneously [Option ID = 2348]
A double stranded DNA has 30 mole percent of cytosine. What would be the mole percent of adenine in it?
[Question ID = 605]
1. 40 [Option ID = 2419]
2. 20 [Option ID = 2417]
3. 60 [Option ID = 2420]
4. 30 [Option ID = 2418]
Correct Answer :-
20 [Option ID = 2417]
A protein having both structural and enzymatic properties is
[Question ID = 535]
64)
65)
66)
67)
68)
69)
1. Histone [Option ID = 2140]
2. Trypsin [Option ID = 2138]
3. Myosin [Option ID = 2139]
4. Collagen [Option ID = 2137]
Correct Answer :-
Myosin [Option ID = 2139]
Bilateral symmetry in certain group of Phylum Mollusca is lost due to
[Question ID = 595]
1. reversion and rotation [Option ID = 2379]
2. expansion and torsion [Option ID = 2380]
3. torsion [Option ID = 2378]
4. rotation [Option ID = 2377]
Correct Answer :-
torsion [Option ID = 2378]
Bilaterally symmetrical, acoelomate organisms are:
[Question ID = 577]
1. platyhelminthes [Option ID = 2306]
2. sponges [Option ID = 2305]
3. acinadia [Option ID = 2308]
4. nemathelminthes [Option ID = 2307]
Correct Answer :-
platyhelminthes [Option ID = 2306]
Honey bee society is [Question ID = 549]
1. Eusocial [Option ID = 2196]
2. Subsocial [Option ID = 2195]
3. Communal [Option ID = 2193]
4. Parasocial [Option ID = 2194]
Correct Answer :-
Eusocial [Option ID = 2196]
DNA finger-printing employs
[Question ID = 588]
1. pseudo-genes as probes. [Option ID = 2352]
2. unique and house-keeping genes as probes [Option ID = 2349]
3. variable number tandem repeats as probes [Option ID = 2351]
4. specific metabolic genes as probes [Option ID = 2350]
Correct Answer :-
variable number tandem repeats as probes [Option ID = 2351]
BLAST program is used in
[Question ID = 564]
1. DNA sequencing [Option ID = 2253]
2. DNA bar coding [Option ID = 2255]
3. Amino Acid sequencing [Option ID = 2254]
4. Bioinformatics [Option ID = 2256]
Correct Answer :-
Bioinformatics [Option ID = 2256]
Hemophilia is an example of a trait that is carried as a ____________________.
70)
71)
72)
73)
74)
[Question ID = 543]
1. Autosomal dominant [Option ID = 2169]
2. Autosomal recessive [Option ID = 2170]
3. Sex-linked dominant [Option ID = 2171]
4. Sex linked recessive [Option ID = 2172]
Correct Answer :-
Sex linked recessive [Option ID = 2172]
Schizocoelic phyla are
[Question ID = 520]
1. Annelida, Arthropoda, and Mollusca [Option ID = 2079]
2. Arthropoda, Mollusca and Echinodermata [Option ID = 2080]
3. Platyhelminthes, Aschelminthes and Annelida [Option ID = 2078]
4. Protozoa, Porifera, Cnidarians, and Platyhelminthes [Option ID = 2077]
Correct Answer :-
Annelida, Arthropoda, and Mollusca [Option ID = 2079]
In terrestrial vertebrates, which of the following structures did not arise from the pharyngeal pouches?
[Question ID = 522]
1. intervertebral discs [Option ID = 2087]
2. Eustachian tube [Option ID = 2085]
3. parathyroid gland [Option ID = 2088]
4. middle ear [Option ID = 2086]
Correct Answer :-
intervertebral discs [Option ID = 2087]
Species inhabiting in different geographical regions are known as
[Question ID = 545]
1. allopatric [Option ID = 2177]
2. biospecies [Option ID = 2180]
3. sibling species [Option ID = 2178]
4. sympatric [Option ID = 2179]
Correct Answer :-
allopatric [Option ID = 2177]
Frog oocytes do not swell in hypotonic solutions. The most plausible explanation for this is the absence of:
[Question ID = 571]
1. Aquaporins [Option ID = 2282]
2. K+ channels [Option ID = 2284]
3. Na+ channels [Option ID = 2283]
4. Na+ K+ ATPase [Option ID = 2281]
Correct Answer :-
Aquaporins [Option ID = 2282]
Nucleosome core is a structural unit of chromomatin
[Question ID = 616]
1. consisting of 8 histones molecules and a specific length of DNA [Option ID = 2463]
2. consisting of 8 histones molecules and a specific sequence of DNA [Option ID = 2462]
3. consisting of 4 histones molecules and a specific length of DNA [Option ID = 2461]
4. consisting of 4 histones molecules and a specific sequence of DNA [Option ID = 2464]
Correct Answer :-
FirstRanker.com - FirstRanker's Choice
1)
2)
3)
4)
5)
DU MSc Zoology
Topic:- DU_J18_MSC_ZOO
Which of the following is NOT a characteristic of lakes suffering from organic pollution?
[Question ID = 582]
1. High microbial concentration [Option ID = 2325]
2. High biochemical oxygen demand [Option ID = 2327]
3. Low phosphate levels [Option ID = 2328]
4. Frequent algal blooms [Option ID = 2326]
Correct Answer :-
Low phosphate levels [Option ID = 2328]
Which of the following was probably absent at the time of origin of life ?
[Question ID = 546]
1. Oxygen [Option ID = 2182]
2. Hydrogen [Option ID = 2181]
3. Methane [Option ID = 2183]
4. Carbon dioxide [Option ID = 2184]
Correct Answer :-
Oxygen [Option ID = 2182]
Which of the following genotypes causes Klinefelter syndrome?
[Question ID = 530]
1. XYY [Option ID = 2120]
2. XO [Option ID = 2117]
3. XXY [Option ID = 2118]
4. XX [Option ID = 2119]
Correct Answer :-
XXY [Option ID = 2118]
Which of the following is wrong match for enzyme classification?
[Question ID = 601]
1. EC 2 ? Trasnferases [Option ID = 2402]
2. EC 3- Hydrolases [Option ID = 2403]
3. EC 1 - Oxidoreductases [Option ID = 2401]
4. EC 4- Ligases [Option ID = 2404]
Correct Answer :-
EC 4- Ligases [Option ID = 2404]
Which of the following is not a possible explanation for the rapid rate of evolution of beak shape in Darwin?s finches?
[Question ID = 614]
1. Strong selection pressure [Option ID = 2455]
2. Small population size [Option ID = 2456]
3. High mutation rate [Option ID = 2453]
4. High emigrations and immigration rate [Option ID = 2454]
Correct Answer :-
High mutation rate [Option ID = 2453]
6)
7)
8)
9)
10)
11)
Which of the following animals is primarily an ectotherm?
[Question ID = 542]
1. Hawk [Option ID = 2165]
2. Lizard [Option ID = 2166]
3. Elephant [Option ID = 2168]
4. Shrew [Option ID = 2167]
Correct Answer :-
Lizard [Option ID = 2166]
Which of the following technique was used by Messelon and Stahl to separate DNA labeled with 15
N
from 14
N
?
[Question ID = 609]
1. Ion-exchange chromatography [Option ID = 2436]
2. Molecular-sieve filtration chromatography [Option ID = 2435]
3. Agarose Gel electrophoresis [Option ID = 2434]
4. CsCl density gradient centrifugation [Option ID = 2433]
Correct Answer :-
CsCl density gradient centrifugation [Option ID = 2433]
Which of the following molecule is most abundant in living system?
[Question ID = 608]
1. Water [Option ID = 2432]
2. Cellulose [Option ID = 2430]
3. Protein [Option ID = 2429]
4. Starch [Option ID = 2431]
Correct Answer :-
Water [Option ID = 2432]
Which system is active under stress?
[Question ID = 536]
1. Sympathetic nervous system [Option ID = 2142]
2. Somatic nervous system [Option ID = 2143]
3. Parasympathetic nervous system [Option ID = 2141]
4. Complete autonomic nervous system [Option ID = 2144]
Correct Answer :-
Sympathetic nervous system [Option ID = 2142]
Which is the first National park established in India:
[Question ID = 583]
1. Jim Corbet National Park [Option ID = 2329]
2. Periyar National Park [Option ID = 2332]
3. Kanziranga National Park [Option ID = 2330]
4. Kanha National Park [Option ID = 2331]
Correct Answer :-
Jim Corbet National Park [Option ID = 2329]
Doubling time for E. coli is 20 min. If the initial number of bacterium in a culture is 100, what would be number of bacterium after 60
min. [Question ID = 606]
1. 300 [Option ID = 2422]
2. 400 [Option ID = 2423]
3. 100 [Option ID = 2421]
4. 800 [Option ID = 2424]
12)
13)
14)
15)
16)
17)
Correct Answer :-
800 [Option ID = 2424]
X-chromosome inactivation
[Question ID = 527]
1. Is the cause of the y chromosome being genetically inactive [Option ID = 2106]
2. Takes place in humans so that the same X chromosome is inactive in all the cells of a female [Option ID = 2107]
3. Normally takes place in males but not in females [Option ID = 2105]
4. Results in genetically turning off one of the two X chromosome in female mammals [Option ID = 2108]
Correct Answer :-
Results in genetically turning off one of the two X chromosome in female mammals [Option ID = 2108]
In ecological succession from pioneer to climax community, the biomass shall:
[Question ID = 584]
1. Increase and then decrease [Option ID = 2334]
2. Increase continuously [Option ID = 2336]
3. Decrease [Option ID = 2333]
4. No relation [Option ID = 2335]
Correct Answer :-
Increase continuously [Option ID = 2336]
Import of glucose by the liver cell:
[Question ID = 569]
1. Is dependent on hydrolysis of ATP [Option ID = 2273]
2. Is facilitated by GLUT2 [Option ID = 2276]
3. Occurs throughout the phospholipid bilayer [Option ID = 2275]
4. Requires expression of GLUT1 on the plasma membrane [Option ID = 2274]
Correct Answer :-
Is facilitated by GLUT2 [Option ID = 2276]
The origin of the jaw in the gnathostomes is the
[Question ID = 524]
1. hyoid [Option ID = 2096]
2. gill arch [Option ID = 2093]
3. notochord [Option ID = 2095]
4. bones supporting the cranium [Option ID = 2094]
Correct Answer :-
gill arch [Option ID = 2093]
The dynamics of which cytoskeletal element changes in a moving amoeba?
[Question ID = 568]
1. Intermediate filaments [Option ID = 2271]
2. MreB [Option ID = 2272]
3. Microtubules [Option ID = 2269]
4. Microfilaments [Option ID = 2270]
Correct Answer :-
Microfilaments [Option ID = 2270]
Repeat core sequences consisting of 2, 3, or 4 base pairs are known as what?
[Question ID = 531]
18)
19)
20)
21)
22)
1. Single nucleotide polymorphisms (SNPs) [Option ID = 2121]
2. Minisatellites [Option ID = 2123]
3. Telomeres [Option ID = 2124]
4. Microsatellites [Option ID = 2122]
Correct Answer :-
Microsatellites [Option ID = 2122]
A haltere is a
[Question ID = 551]
1. Device used by a male insect to attract female for mating [Option ID = 2204]
2. balancing organ of housefly [Option ID = 2203]
3. sense organ of butterfly [Option ID = 2201]
4. modified forewing of beetle [Option ID = 2202]
Correct Answer :-
balancing organ of housefly [Option ID = 2203]
Linolenic (C18: 9,12,15) is an essential fatty acid for human because:
[Question ID = 555]
1. Lenolenic acid is available in fruits [Option ID = 2217]
2. Lenolenic acid gives much energy that palmitic acid [Option ID = 2219]
3. It is unsaturated fatty acid [Option ID = 2220]
4. Human cannot introduce double bond beyond 9-10 carbon of fatty acids [Option ID = 2218]
Correct Answer :-
Human cannot introduce double bond beyond 9-10 carbon of fatty acids [Option ID = 2218]
Passive immunity is obtained by:
[Question ID = 589]
1. Injecting the serum of another animal/individual containing antitoxin [Option ID = 2354]
2. Our own body cells preparing antibodies [Option ID = 2353]
3. Blood transfusion and blood clotting [Option ID = 2356]
4. Drinking medicinal concoctions [Option ID = 2355]
Correct Answer :-
Injecting the serum of another animal/individual containing antitoxin [Option ID = 2354]
2-amino-3 hydroxy propionic acid is the chemical name for which of the following amino acid:
[Question ID = 580]
1. serine [Option ID = 2320]
2. valine [Option ID = 2319]
3. glycine [Option ID = 2317]
4. alanine [Option ID = 2318]
Correct Answer :-
serine [Option ID = 2320]
Low pH of the lysosomal compartment is maintained by
[Question ID = 613]
1. Glycolysis [Option ID = 2452]
2. Electron transport chain [Option ID = 2449]
3. Proton ATPase at the membrane [Option ID = 2450]
4. Luminal acid production [Option ID = 2451]
Correct Answer :-
Proton ATPase at the membrane [Option ID = 2450]
23)
24)
25)
26)
27)
28)
Kidney of the vertebrate embryo develops from:
[Question ID = 591]
1. Mesoderm [Option ID = 2363]
2. Archenteron [Option ID = 2364]
3. Endoderm [Option ID = 2362]
4. Ectoderm [Option ID = 2361]
Correct Answer :-
Mesoderm [Option ID = 2363]
DNA is genetic material in
[Question ID = 563]
1. Only eukaryotes [Option ID = 2251]
2. Only Prokaryotes and eukaryotes [Option ID = 2250]
3. All viruses, prokaryotes, eukaryotes [Option ID = 2249]
4. Some viruses, all prokaryotes and eukaryotes [Option ID = 2252]
Correct Answer :-
Some viruses, all prokaryotes and eukaryotes [Option ID = 2252]
Which of the following statement is NOT TRUE for a competitive inhibitor in an enzyme catalysed reaction?
[Question ID = 600]
1. Their inhibition can be reversed by increasing the substrate concentration [Option ID = 2400]
2. They compete with substrate for binding to the active site. [Option ID = 2398]
3. They are structural analogues of the substrate. [Option ID = 2397]
4. They increase the Km, and decrease the Vmax. [Option ID = 2399]
Correct Answer :-
They increase the Km, and decrease the Vmax. [Option ID = 2399]
Knee joint is a
[Question ID = 548]
1. fibrous joint [Option ID = 2192]
2. cartilaginous joint [Option ID = 2191]
3. collagenous joint [Option ID = 2189]
4. synovial joint [Option ID = 2190]
Correct Answer :-
synovial joint [Option ID = 2190]
The heaviest organelle in cell is:
[Question ID = 556]
1. Lysosomes [Option ID = 2223]
2. Ribosomes [Option ID = 2224]
3. Nucleus [Option ID = 2222]
4. Mitochondria [Option ID = 2221]
Correct Answer :-
Nucleus [Option ID = 2222]
Wallace?s line is present in between
[Question ID = 544]
1. Oriental and Australian regions [Option ID = 2173]
2. Palaearctic and Ethiopian regions [Option ID = 2176]
3. Neotropical and Nearctic regions [Option ID = 2175]
4. Ethiopian and Oriental regions [Option ID = 2174]
29)
30)
31)
32)
33)
34)
Correct Answer :-
Oriental and Australian regions [Option ID = 2173]
In bivalves, which structure secretes pearl?
[Question ID = 598]
1. Nacreous gland. [Option ID = 2392]
2. Nacreous layer [Option ID = 2391]
3. Prismatic layer [Option ID = 2390]
4. Periostracum layer [Option ID = 2389]
Correct Answer :-
Nacreous layer [Option ID = 2391]
Ampicillin inhibits:
[Question ID = 559]
1. Cell wall synthesis in bacterial cells [Option ID = 2236]
2. RNA synthesis in Bacterial cells [Option ID = 2234]
3. DNA synthesis in bacterial cells [Option ID = 2233]
4. Protein synthesis in mammalian cell [Option ID = 2235]
Correct Answer :-
Cell wall synthesis in bacterial cells [Option ID = 2236]
Hiccups can be best described as ___________.
[Question ID = 534]
1. sign of somebody remembering you [Option ID = 2136]
2. vibration of the soft palate during breathing while sleeping [Option ID = 2135]
3. jerky incomplete inspiration [Option ID = 2134]
4. forceful sudden expiration [Option ID = 2133]
Correct Answer :-
jerky incomplete inspiration [Option ID = 2134]
At Isoelectric pH the charge on protein is:
[Question ID = 553]
1. Positive charge on protein [Option ID = 2210]
2. Negative charge on protein [Option ID = 2211]
3. No charge on protein [Option ID = 2209]
4. Net charge on protein is zero [Option ID = 2212]
Correct Answer :-
Net charge on protein is zero [Option ID = 2212]
Lac is a material which is
[Question ID = 552]
1. hardened fecal matter of lac insect [Option ID = 2205]
2. protective secretion deposited by female lac insect [Option ID = 2206]
3. protective covering secreted by larva [Option ID = 2207]
4. resin secreted by the plant [Option ID = 2208]
Correct Answer :-
protective secretion deposited by female lac insect [Option ID = 2206]
Hardy-Weinberg?s law gives the concept of
[Question ID = 586]
35)
36)
37)
38)
39)
1. natural selection. [Option ID = 2344]
2. genetic drift [Option ID = 2341]
3. genetic equilibrium [Option ID = 2343]
4. mutation [Option ID = 2342]
Correct Answer :-
genetic equilibrium [Option ID = 2343]
The vertical migration of plankton is an instance of
[Question ID = 579]
1. Circadian rythmes [Option ID = 2313]
2. Circannual rythmes [Option ID = 2314]
3. photopriodism [Option ID = 2315]
4. photokinesis. [Option ID = 2316]
Correct Answer :-
Circadian rythmes [Option ID = 2313]
Treadmilling of actin filaments in the steady state occurs at G-actin concentration
[Question ID = 565]
1. Below the Cc of the (-) end [Option ID = 2257]
2. Above the Cc of the (-) end but below the Cc of the (+) end [Option ID = 2259]
3. Above the Cc of the (+) end but below the Cc of the (-) end [Option ID = 2260]
4. Above the Cc of the (+) end [Option ID = 2258]
Correct Answer :-
Above the Cc of the (+) end but below the Cc of the (-) end [Option ID = 2260]
Exon skipping is associated with:
[Question ID = 528]
1. regulatory mutations [Option ID = 2110]
2. RNA processing mutations [Option ID = 2111]
3. nonsense mutations [Option ID = 2109]
4. silent mutations [Option ID = 2112]
Correct Answer :-
RNA processing mutations [Option ID = 2111]
Bile is produced in our body which
[Question ID = 557]
1. Act as a surfactant to emulsify lipids in intestine. [Option ID = 2226]
2. It has no role associated with our body [Option ID = 2228]
3. Helps in digestion of starch in intestinbe [Option ID = 2227]
4. Helps in controlling blood pressure [Option ID = 2225]
Correct Answer :-
Act as a surfactant to emulsify lipids in intestine. [Option ID = 2226]
The inner cell mass of mammalian blastocyst develops into,
[Question ID = 578]
1. all embryonic structures [Option ID = 2311]
2. embryonic endoderm [Option ID = 2309]
3. chorio-allantoic placenta [Option ID = 2312]
4. yolk-sac placenta [Option ID = 2310]
Correct Answer :-
all embryonic structures [Option ID = 2311]
40)
41)
42)
43)
44)
45)
The isoform/s of actin present in muscle cells
[Question ID = 566]
1. beta-actin [Option ID = 2263]
2. beta-and gamma-actin [Option ID = 2264]
3. alpha-actin [Option ID = 2261]
4. alpha and beta-actin [Option ID = 2262]
Correct Answer :-
alpha-actin [Option ID = 2261]
The four postulates of the Chemiosmotic hypothesis accounted for:
[Question ID = 574]
1. ETC, F1-F0 ATPase, cardiolipin and pmf generators [Option ID = 2295]
2. ETC, F1-F0 ATPase, cardiolipin and anion exchangers [Option ID = 2296]
3. Cardiolipin [Option ID = 2294]
4. The four complexes of the electron transport chain (ETC). [Option ID = 2293]
Correct Answer :-
ETC, F1-F0 ATPase, cardiolipin and anion exchangers [Option ID = 2296]
Cilia and flagella contains a contractile protein called:
[Question ID = 575]
1. Myosin [Option ID = 2300]
2. Tubulin [Option ID = 2298]
3. Actin [Option ID = 2299]
4. Dyenin [Option ID = 2297]
Correct Answer :-
Dyenin [Option ID = 2297]
Insects such as Drosophila undergo three molts before undergoing metamorphosis. Molting is controlled by which of the following
hormone?
[Question ID = 532]
1. juvenile hormone [Option ID = 2126]
2. growth hormone [Option ID = 2128]
3. auxin [Option ID = 2127]
4. ecdysone [Option ID = 2125]
Correct Answer :-
ecdysone [Option ID = 2125]
Injection of anti-venom to a patient for snake bite is an example of
[Question ID = 562]
1. Artificially acquired active immunity [Option ID = 2246]
2. Artificially acquired passive immunity [Option ID = 2248]
3. Naturally acquired active immunity [Option ID = 2245]
4. Naturally acquired passive immunity [Option ID = 2247]
Correct Answer :-
Artificially acquired passive immunity [Option ID = 2248]
Steroid hormones are synthesized from
[Question ID = 558]
1. Glycogen [Option ID = 2232]
2. Tryptophan [Option ID = 2229]
3. Stearic acid [Option ID = 2231]
4. Cholesterol [Option ID = 2230]
46)
47)
48)
49)
50)
51)
Correct Answer :-
Cholesterol [Option ID = 2230]
When a heterozygous offspring is crossed to homozygous recessive parent, it is called as
[Question ID = 533]
1. Test cross [Option ID = 2129]
2. Reciprocal cross [Option ID = 2130]
3. Dihybrid cross [Option ID = 2132]
4. Monohybrid cross [Option ID = 2131]
Correct Answer :-
Test cross [Option ID = 2129]
Identify the statement that is NOT TRUE for Iron-sulphur clusters
[Question ID = 573]
1. These are prosthetic groups of succinate-coenzyme Q reductase complex. [Option ID = 2289]
2. These accept and release electrons one at a time [Option ID = 2291]
3. They contain Fe bonded to inorganic S atoms and S atoms on cysteine residues of proteins [Option ID = 2290]
4. They are always associated with cytochromes. [Option ID = 2292]
Correct Answer :-
They are always associated with cytochromes. [Option ID = 2292]
Of the early fish, which led to the extant fish of today?
[Question ID = 525]
1. cephalochordates [Option ID = 2099]
2. acanthodians [Option ID = 2100]
3. placoderms [Option ID = 2098]
4. heterostracans [Option ID = 2097]
Correct Answer :-
acanthodians [Option ID = 2100]
Water is a good solvent for inorganic salts because
[Question ID = 615]
1. hydrogen bond [Option ID = 2459]
2. dielectric constant [Option ID = 2457]
3. polarity [Option ID = 2458]
4. conductivity [Option ID = 2460]
Correct Answer :-
If the sequence of coding strand in a transcription unit is as follows: 5?-GAATTGCCAATTGCAGTC-3?, the sequence of mRNA
transcribed from the transcription unit would be, [Question ID = 604]
1. 3?-GAAUUGCCAAUUGCAGUC-5? [Option ID = 2416]
2. 5?-CUUAACGGUUAACGUCAG-3? [Option ID = 2414]
3. 5?-GAAUUGCCAAUUGCAGUC-3? [Option ID = 2413]
4. 5?-GACUGCAAUUGGCAAUUC-3? [Option ID = 2415]
Correct Answer :-
5?-GAAUUGCCAAUUGCAGUC-3? [Option ID = 2413]
In a Robertsonian translocation fusion occurs at the:
[Question ID = 529]
1. centromeres [Option ID = 2114]
2. histones [Option ID = 2115]
3. telomeres [Option ID = 2113]
52)
53)
54)
55)
56)
57)
4. ends of the long arms [Option ID = 2116]
Correct Answer :-
centromeres [Option ID = 2114]
Symporters are cotransporters that transport:
[Question ID = 570]
1. Cations and anions in the opposite direction. [Option ID = 2278]
2. Glucose against its concentration gradient. [Option ID = 2280]
3. Small molecules and gases in the same direction. [Option ID = 2277]
4. Na+ ions and glucose against the concentration gradient. [Option ID = 2279]
Correct Answer :-
Glucose against its concentration gradient. [Option ID = 2280]
Bidirectional movement of vesicles requires
[Question ID = 567]
1. Kinesin I [Option ID = 2265]
2. Association of (+) and (-) end-directed motors [Option ID = 2268]
3. A flexible neck region on the motor protein [Option ID = 2267]
4. Microtubules and microfilaments [Option ID = 2266]
Correct Answer :-
Association of (+) and (-) end-directed motors [Option ID = 2268]
Pharyngeal gill slits
[Question ID = 521]
1. are not found in protochordates, but are present in vertebrates, at least during the embryonic life [Option ID = 2084]
2. are found in higher inverterates and vertebrates [Option ID = 2083]
3. are found in fishes, crabs, snails, aquatic insects [Option ID = 2082]
4. are unique chordate characteristic [Option ID = 2081]
Correct Answer :-
are unique chordate characteristic [Option ID = 2081]
Three pg of a hypothetical protein-X is present in a cell. How many molecules of protein-X would be present in a cell, if the molecular
weight of the protein is 30000? (Given, Avogaro?s number is 6 x 10
23
)
[Question ID = 610]
1. 6 x 10
15
[Option ID = 2439]
2. 6 x 10
7
[Option ID = 2438]
3. 6 x 10
23
[Option ID = 2440]
4. 6 x 10
6
[Option ID = 2437]
Correct Answer :-
6 x 10
7
[Option ID = 2438]
Ciliated pseudostratified columnar epithelia are found in
[Question ID = 537]
1. membranous part of male vas deferens [Option ID = 2147]
2. linings of the trachea & upper respiratory tract [Option ID = 2146]
3. lining of the trachea [Option ID = 2145]
4. Vagina [Option ID = 2148]
Correct Answer :-
linings of the trachea & upper respiratory tract [Option ID = 2146]
In vertebrates, which one of the following structures is believed to have been transformed into thyroid gland? [Question ID = 592]
58)
59)
60)
61)
62)
63)
1. Pygostyle [Option ID = 2365]
2. Analstyle [Option ID = 2367]
3. Endostyle [Option ID = 2368]
4. Urostyle [Option ID = 2366]
Correct Answer :-
Endostyle [Option ID = 2368]
DNA double helix is stabilized by: [Question ID = 602]
1. Hydrophobic interactions only [Option ID = 2408]
2. H-bonds only [Option ID = 2405]
3. H-bonds and base stacking interactions [Option ID = 2406]
4. Electrostatic interactions [Option ID = 2407]
Correct Answer :-
H-bonds and base stacking interactions [Option ID = 2406]
Three forms of Daphnia are found in varying seasons. This phenomenon is called: [Question ID = 593]
1. Poly morphism [Option ID = 2369]
2. Seasonal peroidicity [Option ID = 2371]
3. Adaptation [Option ID = 2372]
4. Cyclomorphism [Option ID = 2370]
Correct Answer :-
Cyclomorphism [Option ID = 2370]
A gene showing co-dominance
[Question ID = 526]
1. Has alleles tightly linked on the same chromosome [Option ID = 2103]
2. Has alleles expressed at the same time in development [Option ID = 2104]
3. Has one allele dominant to the other [Option ID = 2101]
4. Has both alleles independently expressed in heterozygote [Option ID = 2102]
Correct Answer :-
Has both alleles independently expressed in heterozygote [Option ID = 2102]
If the atrioventricular node could be surgically removed from the heart without disrupting signal transmission to bundle of His,
then?
[Question ID = 587]
1. atria & ventricle would contract almost simultaneously [Option ID = 2348]
2. the heart rate would be decreased. [Option ID = 2345]
3. only artia would contract. [Option ID = 2346]
4. only ventricle would contract. [Option ID = 2347]
Correct Answer :-
atria & ventricle would contract almost simultaneously [Option ID = 2348]
A double stranded DNA has 30 mole percent of cytosine. What would be the mole percent of adenine in it?
[Question ID = 605]
1. 40 [Option ID = 2419]
2. 20 [Option ID = 2417]
3. 60 [Option ID = 2420]
4. 30 [Option ID = 2418]
Correct Answer :-
20 [Option ID = 2417]
A protein having both structural and enzymatic properties is
[Question ID = 535]
64)
65)
66)
67)
68)
69)
1. Histone [Option ID = 2140]
2. Trypsin [Option ID = 2138]
3. Myosin [Option ID = 2139]
4. Collagen [Option ID = 2137]
Correct Answer :-
Myosin [Option ID = 2139]
Bilateral symmetry in certain group of Phylum Mollusca is lost due to
[Question ID = 595]
1. reversion and rotation [Option ID = 2379]
2. expansion and torsion [Option ID = 2380]
3. torsion [Option ID = 2378]
4. rotation [Option ID = 2377]
Correct Answer :-
torsion [Option ID = 2378]
Bilaterally symmetrical, acoelomate organisms are:
[Question ID = 577]
1. platyhelminthes [Option ID = 2306]
2. sponges [Option ID = 2305]
3. acinadia [Option ID = 2308]
4. nemathelminthes [Option ID = 2307]
Correct Answer :-
platyhelminthes [Option ID = 2306]
Honey bee society is [Question ID = 549]
1. Eusocial [Option ID = 2196]
2. Subsocial [Option ID = 2195]
3. Communal [Option ID = 2193]
4. Parasocial [Option ID = 2194]
Correct Answer :-
Eusocial [Option ID = 2196]
DNA finger-printing employs
[Question ID = 588]
1. pseudo-genes as probes. [Option ID = 2352]
2. unique and house-keeping genes as probes [Option ID = 2349]
3. variable number tandem repeats as probes [Option ID = 2351]
4. specific metabolic genes as probes [Option ID = 2350]
Correct Answer :-
variable number tandem repeats as probes [Option ID = 2351]
BLAST program is used in
[Question ID = 564]
1. DNA sequencing [Option ID = 2253]
2. DNA bar coding [Option ID = 2255]
3. Amino Acid sequencing [Option ID = 2254]
4. Bioinformatics [Option ID = 2256]
Correct Answer :-
Bioinformatics [Option ID = 2256]
Hemophilia is an example of a trait that is carried as a ____________________.
70)
71)
72)
73)
74)
[Question ID = 543]
1. Autosomal dominant [Option ID = 2169]
2. Autosomal recessive [Option ID = 2170]
3. Sex-linked dominant [Option ID = 2171]
4. Sex linked recessive [Option ID = 2172]
Correct Answer :-
Sex linked recessive [Option ID = 2172]
Schizocoelic phyla are
[Question ID = 520]
1. Annelida, Arthropoda, and Mollusca [Option ID = 2079]
2. Arthropoda, Mollusca and Echinodermata [Option ID = 2080]
3. Platyhelminthes, Aschelminthes and Annelida [Option ID = 2078]
4. Protozoa, Porifera, Cnidarians, and Platyhelminthes [Option ID = 2077]
Correct Answer :-
Annelida, Arthropoda, and Mollusca [Option ID = 2079]
In terrestrial vertebrates, which of the following structures did not arise from the pharyngeal pouches?
[Question ID = 522]
1. intervertebral discs [Option ID = 2087]
2. Eustachian tube [Option ID = 2085]
3. parathyroid gland [Option ID = 2088]
4. middle ear [Option ID = 2086]
Correct Answer :-
intervertebral discs [Option ID = 2087]
Species inhabiting in different geographical regions are known as
[Question ID = 545]
1. allopatric [Option ID = 2177]
2. biospecies [Option ID = 2180]
3. sibling species [Option ID = 2178]
4. sympatric [Option ID = 2179]
Correct Answer :-
allopatric [Option ID = 2177]
Frog oocytes do not swell in hypotonic solutions. The most plausible explanation for this is the absence of:
[Question ID = 571]
1. Aquaporins [Option ID = 2282]
2. K+ channels [Option ID = 2284]
3. Na+ channels [Option ID = 2283]
4. Na+ K+ ATPase [Option ID = 2281]
Correct Answer :-
Aquaporins [Option ID = 2282]
Nucleosome core is a structural unit of chromomatin
[Question ID = 616]
1. consisting of 8 histones molecules and a specific length of DNA [Option ID = 2463]
2. consisting of 8 histones molecules and a specific sequence of DNA [Option ID = 2462]
3. consisting of 4 histones molecules and a specific length of DNA [Option ID = 2461]
4. consisting of 4 histones molecules and a specific sequence of DNA [Option ID = 2464]
Correct Answer :-
75)
76)
77)
78)
79)
consisting of 8 histones molecules and a specific length of DNA [Option ID = 2463]
Melting temperature (Tm) of double stranded DNA increases with
[Question ID = 554]
1. Increases by modified bases [Option ID = 2216]
2. Increase in number of adenine/thymine bases [Option ID = 2214]
3. Increase number of guanine/cytosine bases [Option ID = 2213]
4. Bases have no effect on Tm of DNA [Option ID = 2215]
Correct Answer :-
Increase number of guanine/cytosine bases [Option ID = 2213]
Unfolded or misfolded proteins are degraded in:
[Question ID = 560]
1. Golgi [Option ID = 2239]
2. Endoplasmic reticulum [Option ID = 2240]
3. Mitochondria [Option ID = 2237]
4. Proteasomes [Option ID = 2238]
Correct Answer :-
Proteasomes [Option ID = 2238]
Which of the following communicable diseases is NOT transmitted by Aedes? [Question ID = 539]
1. Dengue haemorrhagic fever [Option ID = 2153]
2. Yellow fever [Option ID = 2156]
3. Chikungunia [Option ID = 2155]
4. Sleeping sickness [Option ID = 2154]
Correct Answer :-
Sleeping sickness [Option ID = 2154]
Which of the following is semiautonomous organelle? [Question ID = 541]
1. Golgi complex [Option ID = 2163]
2. Mitochondria [Option ID = 2162]
3. Nucleus [Option ID = 2161]
4. Ribosomes [Option ID = 2164]
Correct Answer :-
Mitochondria [Option ID = 2162]
[Question ID = 612]
1. [Option ID = 2448]
2. [Option ID = 2446]
3. [Option ID = 2445]
FirstRanker.com - FirstRanker's Choice
1)
2)
3)
4)
5)
DU MSc Zoology
Topic:- DU_J18_MSC_ZOO
Which of the following is NOT a characteristic of lakes suffering from organic pollution?
[Question ID = 582]
1. High microbial concentration [Option ID = 2325]
2. High biochemical oxygen demand [Option ID = 2327]
3. Low phosphate levels [Option ID = 2328]
4. Frequent algal blooms [Option ID = 2326]
Correct Answer :-
Low phosphate levels [Option ID = 2328]
Which of the following was probably absent at the time of origin of life ?
[Question ID = 546]
1. Oxygen [Option ID = 2182]
2. Hydrogen [Option ID = 2181]
3. Methane [Option ID = 2183]
4. Carbon dioxide [Option ID = 2184]
Correct Answer :-
Oxygen [Option ID = 2182]
Which of the following genotypes causes Klinefelter syndrome?
[Question ID = 530]
1. XYY [Option ID = 2120]
2. XO [Option ID = 2117]
3. XXY [Option ID = 2118]
4. XX [Option ID = 2119]
Correct Answer :-
XXY [Option ID = 2118]
Which of the following is wrong match for enzyme classification?
[Question ID = 601]
1. EC 2 ? Trasnferases [Option ID = 2402]
2. EC 3- Hydrolases [Option ID = 2403]
3. EC 1 - Oxidoreductases [Option ID = 2401]
4. EC 4- Ligases [Option ID = 2404]
Correct Answer :-
EC 4- Ligases [Option ID = 2404]
Which of the following is not a possible explanation for the rapid rate of evolution of beak shape in Darwin?s finches?
[Question ID = 614]
1. Strong selection pressure [Option ID = 2455]
2. Small population size [Option ID = 2456]
3. High mutation rate [Option ID = 2453]
4. High emigrations and immigration rate [Option ID = 2454]
Correct Answer :-
High mutation rate [Option ID = 2453]
6)
7)
8)
9)
10)
11)
Which of the following animals is primarily an ectotherm?
[Question ID = 542]
1. Hawk [Option ID = 2165]
2. Lizard [Option ID = 2166]
3. Elephant [Option ID = 2168]
4. Shrew [Option ID = 2167]
Correct Answer :-
Lizard [Option ID = 2166]
Which of the following technique was used by Messelon and Stahl to separate DNA labeled with 15
N
from 14
N
?
[Question ID = 609]
1. Ion-exchange chromatography [Option ID = 2436]
2. Molecular-sieve filtration chromatography [Option ID = 2435]
3. Agarose Gel electrophoresis [Option ID = 2434]
4. CsCl density gradient centrifugation [Option ID = 2433]
Correct Answer :-
CsCl density gradient centrifugation [Option ID = 2433]
Which of the following molecule is most abundant in living system?
[Question ID = 608]
1. Water [Option ID = 2432]
2. Cellulose [Option ID = 2430]
3. Protein [Option ID = 2429]
4. Starch [Option ID = 2431]
Correct Answer :-
Water [Option ID = 2432]
Which system is active under stress?
[Question ID = 536]
1. Sympathetic nervous system [Option ID = 2142]
2. Somatic nervous system [Option ID = 2143]
3. Parasympathetic nervous system [Option ID = 2141]
4. Complete autonomic nervous system [Option ID = 2144]
Correct Answer :-
Sympathetic nervous system [Option ID = 2142]
Which is the first National park established in India:
[Question ID = 583]
1. Jim Corbet National Park [Option ID = 2329]
2. Periyar National Park [Option ID = 2332]
3. Kanziranga National Park [Option ID = 2330]
4. Kanha National Park [Option ID = 2331]
Correct Answer :-
Jim Corbet National Park [Option ID = 2329]
Doubling time for E. coli is 20 min. If the initial number of bacterium in a culture is 100, what would be number of bacterium after 60
min. [Question ID = 606]
1. 300 [Option ID = 2422]
2. 400 [Option ID = 2423]
3. 100 [Option ID = 2421]
4. 800 [Option ID = 2424]
12)
13)
14)
15)
16)
17)
Correct Answer :-
800 [Option ID = 2424]
X-chromosome inactivation
[Question ID = 527]
1. Is the cause of the y chromosome being genetically inactive [Option ID = 2106]
2. Takes place in humans so that the same X chromosome is inactive in all the cells of a female [Option ID = 2107]
3. Normally takes place in males but not in females [Option ID = 2105]
4. Results in genetically turning off one of the two X chromosome in female mammals [Option ID = 2108]
Correct Answer :-
Results in genetically turning off one of the two X chromosome in female mammals [Option ID = 2108]
In ecological succession from pioneer to climax community, the biomass shall:
[Question ID = 584]
1. Increase and then decrease [Option ID = 2334]
2. Increase continuously [Option ID = 2336]
3. Decrease [Option ID = 2333]
4. No relation [Option ID = 2335]
Correct Answer :-
Increase continuously [Option ID = 2336]
Import of glucose by the liver cell:
[Question ID = 569]
1. Is dependent on hydrolysis of ATP [Option ID = 2273]
2. Is facilitated by GLUT2 [Option ID = 2276]
3. Occurs throughout the phospholipid bilayer [Option ID = 2275]
4. Requires expression of GLUT1 on the plasma membrane [Option ID = 2274]
Correct Answer :-
Is facilitated by GLUT2 [Option ID = 2276]
The origin of the jaw in the gnathostomes is the
[Question ID = 524]
1. hyoid [Option ID = 2096]
2. gill arch [Option ID = 2093]
3. notochord [Option ID = 2095]
4. bones supporting the cranium [Option ID = 2094]
Correct Answer :-
gill arch [Option ID = 2093]
The dynamics of which cytoskeletal element changes in a moving amoeba?
[Question ID = 568]
1. Intermediate filaments [Option ID = 2271]
2. MreB [Option ID = 2272]
3. Microtubules [Option ID = 2269]
4. Microfilaments [Option ID = 2270]
Correct Answer :-
Microfilaments [Option ID = 2270]
Repeat core sequences consisting of 2, 3, or 4 base pairs are known as what?
[Question ID = 531]
18)
19)
20)
21)
22)
1. Single nucleotide polymorphisms (SNPs) [Option ID = 2121]
2. Minisatellites [Option ID = 2123]
3. Telomeres [Option ID = 2124]
4. Microsatellites [Option ID = 2122]
Correct Answer :-
Microsatellites [Option ID = 2122]
A haltere is a
[Question ID = 551]
1. Device used by a male insect to attract female for mating [Option ID = 2204]
2. balancing organ of housefly [Option ID = 2203]
3. sense organ of butterfly [Option ID = 2201]
4. modified forewing of beetle [Option ID = 2202]
Correct Answer :-
balancing organ of housefly [Option ID = 2203]
Linolenic (C18: 9,12,15) is an essential fatty acid for human because:
[Question ID = 555]
1. Lenolenic acid is available in fruits [Option ID = 2217]
2. Lenolenic acid gives much energy that palmitic acid [Option ID = 2219]
3. It is unsaturated fatty acid [Option ID = 2220]
4. Human cannot introduce double bond beyond 9-10 carbon of fatty acids [Option ID = 2218]
Correct Answer :-
Human cannot introduce double bond beyond 9-10 carbon of fatty acids [Option ID = 2218]
Passive immunity is obtained by:
[Question ID = 589]
1. Injecting the serum of another animal/individual containing antitoxin [Option ID = 2354]
2. Our own body cells preparing antibodies [Option ID = 2353]
3. Blood transfusion and blood clotting [Option ID = 2356]
4. Drinking medicinal concoctions [Option ID = 2355]
Correct Answer :-
Injecting the serum of another animal/individual containing antitoxin [Option ID = 2354]
2-amino-3 hydroxy propionic acid is the chemical name for which of the following amino acid:
[Question ID = 580]
1. serine [Option ID = 2320]
2. valine [Option ID = 2319]
3. glycine [Option ID = 2317]
4. alanine [Option ID = 2318]
Correct Answer :-
serine [Option ID = 2320]
Low pH of the lysosomal compartment is maintained by
[Question ID = 613]
1. Glycolysis [Option ID = 2452]
2. Electron transport chain [Option ID = 2449]
3. Proton ATPase at the membrane [Option ID = 2450]
4. Luminal acid production [Option ID = 2451]
Correct Answer :-
Proton ATPase at the membrane [Option ID = 2450]
23)
24)
25)
26)
27)
28)
Kidney of the vertebrate embryo develops from:
[Question ID = 591]
1. Mesoderm [Option ID = 2363]
2. Archenteron [Option ID = 2364]
3. Endoderm [Option ID = 2362]
4. Ectoderm [Option ID = 2361]
Correct Answer :-
Mesoderm [Option ID = 2363]
DNA is genetic material in
[Question ID = 563]
1. Only eukaryotes [Option ID = 2251]
2. Only Prokaryotes and eukaryotes [Option ID = 2250]
3. All viruses, prokaryotes, eukaryotes [Option ID = 2249]
4. Some viruses, all prokaryotes and eukaryotes [Option ID = 2252]
Correct Answer :-
Some viruses, all prokaryotes and eukaryotes [Option ID = 2252]
Which of the following statement is NOT TRUE for a competitive inhibitor in an enzyme catalysed reaction?
[Question ID = 600]
1. Their inhibition can be reversed by increasing the substrate concentration [Option ID = 2400]
2. They compete with substrate for binding to the active site. [Option ID = 2398]
3. They are structural analogues of the substrate. [Option ID = 2397]
4. They increase the Km, and decrease the Vmax. [Option ID = 2399]
Correct Answer :-
They increase the Km, and decrease the Vmax. [Option ID = 2399]
Knee joint is a
[Question ID = 548]
1. fibrous joint [Option ID = 2192]
2. cartilaginous joint [Option ID = 2191]
3. collagenous joint [Option ID = 2189]
4. synovial joint [Option ID = 2190]
Correct Answer :-
synovial joint [Option ID = 2190]
The heaviest organelle in cell is:
[Question ID = 556]
1. Lysosomes [Option ID = 2223]
2. Ribosomes [Option ID = 2224]
3. Nucleus [Option ID = 2222]
4. Mitochondria [Option ID = 2221]
Correct Answer :-
Nucleus [Option ID = 2222]
Wallace?s line is present in between
[Question ID = 544]
1. Oriental and Australian regions [Option ID = 2173]
2. Palaearctic and Ethiopian regions [Option ID = 2176]
3. Neotropical and Nearctic regions [Option ID = 2175]
4. Ethiopian and Oriental regions [Option ID = 2174]
29)
30)
31)
32)
33)
34)
Correct Answer :-
Oriental and Australian regions [Option ID = 2173]
In bivalves, which structure secretes pearl?
[Question ID = 598]
1. Nacreous gland. [Option ID = 2392]
2. Nacreous layer [Option ID = 2391]
3. Prismatic layer [Option ID = 2390]
4. Periostracum layer [Option ID = 2389]
Correct Answer :-
Nacreous layer [Option ID = 2391]
Ampicillin inhibits:
[Question ID = 559]
1. Cell wall synthesis in bacterial cells [Option ID = 2236]
2. RNA synthesis in Bacterial cells [Option ID = 2234]
3. DNA synthesis in bacterial cells [Option ID = 2233]
4. Protein synthesis in mammalian cell [Option ID = 2235]
Correct Answer :-
Cell wall synthesis in bacterial cells [Option ID = 2236]
Hiccups can be best described as ___________.
[Question ID = 534]
1. sign of somebody remembering you [Option ID = 2136]
2. vibration of the soft palate during breathing while sleeping [Option ID = 2135]
3. jerky incomplete inspiration [Option ID = 2134]
4. forceful sudden expiration [Option ID = 2133]
Correct Answer :-
jerky incomplete inspiration [Option ID = 2134]
At Isoelectric pH the charge on protein is:
[Question ID = 553]
1. Positive charge on protein [Option ID = 2210]
2. Negative charge on protein [Option ID = 2211]
3. No charge on protein [Option ID = 2209]
4. Net charge on protein is zero [Option ID = 2212]
Correct Answer :-
Net charge on protein is zero [Option ID = 2212]
Lac is a material which is
[Question ID = 552]
1. hardened fecal matter of lac insect [Option ID = 2205]
2. protective secretion deposited by female lac insect [Option ID = 2206]
3. protective covering secreted by larva [Option ID = 2207]
4. resin secreted by the plant [Option ID = 2208]
Correct Answer :-
protective secretion deposited by female lac insect [Option ID = 2206]
Hardy-Weinberg?s law gives the concept of
[Question ID = 586]
35)
36)
37)
38)
39)
1. natural selection. [Option ID = 2344]
2. genetic drift [Option ID = 2341]
3. genetic equilibrium [Option ID = 2343]
4. mutation [Option ID = 2342]
Correct Answer :-
genetic equilibrium [Option ID = 2343]
The vertical migration of plankton is an instance of
[Question ID = 579]
1. Circadian rythmes [Option ID = 2313]
2. Circannual rythmes [Option ID = 2314]
3. photopriodism [Option ID = 2315]
4. photokinesis. [Option ID = 2316]
Correct Answer :-
Circadian rythmes [Option ID = 2313]
Treadmilling of actin filaments in the steady state occurs at G-actin concentration
[Question ID = 565]
1. Below the Cc of the (-) end [Option ID = 2257]
2. Above the Cc of the (-) end but below the Cc of the (+) end [Option ID = 2259]
3. Above the Cc of the (+) end but below the Cc of the (-) end [Option ID = 2260]
4. Above the Cc of the (+) end [Option ID = 2258]
Correct Answer :-
Above the Cc of the (+) end but below the Cc of the (-) end [Option ID = 2260]
Exon skipping is associated with:
[Question ID = 528]
1. regulatory mutations [Option ID = 2110]
2. RNA processing mutations [Option ID = 2111]
3. nonsense mutations [Option ID = 2109]
4. silent mutations [Option ID = 2112]
Correct Answer :-
RNA processing mutations [Option ID = 2111]
Bile is produced in our body which
[Question ID = 557]
1. Act as a surfactant to emulsify lipids in intestine. [Option ID = 2226]
2. It has no role associated with our body [Option ID = 2228]
3. Helps in digestion of starch in intestinbe [Option ID = 2227]
4. Helps in controlling blood pressure [Option ID = 2225]
Correct Answer :-
Act as a surfactant to emulsify lipids in intestine. [Option ID = 2226]
The inner cell mass of mammalian blastocyst develops into,
[Question ID = 578]
1. all embryonic structures [Option ID = 2311]
2. embryonic endoderm [Option ID = 2309]
3. chorio-allantoic placenta [Option ID = 2312]
4. yolk-sac placenta [Option ID = 2310]
Correct Answer :-
all embryonic structures [Option ID = 2311]
40)
41)
42)
43)
44)
45)
The isoform/s of actin present in muscle cells
[Question ID = 566]
1. beta-actin [Option ID = 2263]
2. beta-and gamma-actin [Option ID = 2264]
3. alpha-actin [Option ID = 2261]
4. alpha and beta-actin [Option ID = 2262]
Correct Answer :-
alpha-actin [Option ID = 2261]
The four postulates of the Chemiosmotic hypothesis accounted for:
[Question ID = 574]
1. ETC, F1-F0 ATPase, cardiolipin and pmf generators [Option ID = 2295]
2. ETC, F1-F0 ATPase, cardiolipin and anion exchangers [Option ID = 2296]
3. Cardiolipin [Option ID = 2294]
4. The four complexes of the electron transport chain (ETC). [Option ID = 2293]
Correct Answer :-
ETC, F1-F0 ATPase, cardiolipin and anion exchangers [Option ID = 2296]
Cilia and flagella contains a contractile protein called:
[Question ID = 575]
1. Myosin [Option ID = 2300]
2. Tubulin [Option ID = 2298]
3. Actin [Option ID = 2299]
4. Dyenin [Option ID = 2297]
Correct Answer :-
Dyenin [Option ID = 2297]
Insects such as Drosophila undergo three molts before undergoing metamorphosis. Molting is controlled by which of the following
hormone?
[Question ID = 532]
1. juvenile hormone [Option ID = 2126]
2. growth hormone [Option ID = 2128]
3. auxin [Option ID = 2127]
4. ecdysone [Option ID = 2125]
Correct Answer :-
ecdysone [Option ID = 2125]
Injection of anti-venom to a patient for snake bite is an example of
[Question ID = 562]
1. Artificially acquired active immunity [Option ID = 2246]
2. Artificially acquired passive immunity [Option ID = 2248]
3. Naturally acquired active immunity [Option ID = 2245]
4. Naturally acquired passive immunity [Option ID = 2247]
Correct Answer :-
Artificially acquired passive immunity [Option ID = 2248]
Steroid hormones are synthesized from
[Question ID = 558]
1. Glycogen [Option ID = 2232]
2. Tryptophan [Option ID = 2229]
3. Stearic acid [Option ID = 2231]
4. Cholesterol [Option ID = 2230]
46)
47)
48)
49)
50)
51)
Correct Answer :-
Cholesterol [Option ID = 2230]
When a heterozygous offspring is crossed to homozygous recessive parent, it is called as
[Question ID = 533]
1. Test cross [Option ID = 2129]
2. Reciprocal cross [Option ID = 2130]
3. Dihybrid cross [Option ID = 2132]
4. Monohybrid cross [Option ID = 2131]
Correct Answer :-
Test cross [Option ID = 2129]
Identify the statement that is NOT TRUE for Iron-sulphur clusters
[Question ID = 573]
1. These are prosthetic groups of succinate-coenzyme Q reductase complex. [Option ID = 2289]
2. These accept and release electrons one at a time [Option ID = 2291]
3. They contain Fe bonded to inorganic S atoms and S atoms on cysteine residues of proteins [Option ID = 2290]
4. They are always associated with cytochromes. [Option ID = 2292]
Correct Answer :-
They are always associated with cytochromes. [Option ID = 2292]
Of the early fish, which led to the extant fish of today?
[Question ID = 525]
1. cephalochordates [Option ID = 2099]
2. acanthodians [Option ID = 2100]
3. placoderms [Option ID = 2098]
4. heterostracans [Option ID = 2097]
Correct Answer :-
acanthodians [Option ID = 2100]
Water is a good solvent for inorganic salts because
[Question ID = 615]
1. hydrogen bond [Option ID = 2459]
2. dielectric constant [Option ID = 2457]
3. polarity [Option ID = 2458]
4. conductivity [Option ID = 2460]
Correct Answer :-
If the sequence of coding strand in a transcription unit is as follows: 5?-GAATTGCCAATTGCAGTC-3?, the sequence of mRNA
transcribed from the transcription unit would be, [Question ID = 604]
1. 3?-GAAUUGCCAAUUGCAGUC-5? [Option ID = 2416]
2. 5?-CUUAACGGUUAACGUCAG-3? [Option ID = 2414]
3. 5?-GAAUUGCCAAUUGCAGUC-3? [Option ID = 2413]
4. 5?-GACUGCAAUUGGCAAUUC-3? [Option ID = 2415]
Correct Answer :-
5?-GAAUUGCCAAUUGCAGUC-3? [Option ID = 2413]
In a Robertsonian translocation fusion occurs at the:
[Question ID = 529]
1. centromeres [Option ID = 2114]
2. histones [Option ID = 2115]
3. telomeres [Option ID = 2113]
52)
53)
54)
55)
56)
57)
4. ends of the long arms [Option ID = 2116]
Correct Answer :-
centromeres [Option ID = 2114]
Symporters are cotransporters that transport:
[Question ID = 570]
1. Cations and anions in the opposite direction. [Option ID = 2278]
2. Glucose against its concentration gradient. [Option ID = 2280]
3. Small molecules and gases in the same direction. [Option ID = 2277]
4. Na+ ions and glucose against the concentration gradient. [Option ID = 2279]
Correct Answer :-
Glucose against its concentration gradient. [Option ID = 2280]
Bidirectional movement of vesicles requires
[Question ID = 567]
1. Kinesin I [Option ID = 2265]
2. Association of (+) and (-) end-directed motors [Option ID = 2268]
3. A flexible neck region on the motor protein [Option ID = 2267]
4. Microtubules and microfilaments [Option ID = 2266]
Correct Answer :-
Association of (+) and (-) end-directed motors [Option ID = 2268]
Pharyngeal gill slits
[Question ID = 521]
1. are not found in protochordates, but are present in vertebrates, at least during the embryonic life [Option ID = 2084]
2. are found in higher inverterates and vertebrates [Option ID = 2083]
3. are found in fishes, crabs, snails, aquatic insects [Option ID = 2082]
4. are unique chordate characteristic [Option ID = 2081]
Correct Answer :-
are unique chordate characteristic [Option ID = 2081]
Three pg of a hypothetical protein-X is present in a cell. How many molecules of protein-X would be present in a cell, if the molecular
weight of the protein is 30000? (Given, Avogaro?s number is 6 x 10
23
)
[Question ID = 610]
1. 6 x 10
15
[Option ID = 2439]
2. 6 x 10
7
[Option ID = 2438]
3. 6 x 10
23
[Option ID = 2440]
4. 6 x 10
6
[Option ID = 2437]
Correct Answer :-
6 x 10
7
[Option ID = 2438]
Ciliated pseudostratified columnar epithelia are found in
[Question ID = 537]
1. membranous part of male vas deferens [Option ID = 2147]
2. linings of the trachea & upper respiratory tract [Option ID = 2146]
3. lining of the trachea [Option ID = 2145]
4. Vagina [Option ID = 2148]
Correct Answer :-
linings of the trachea & upper respiratory tract [Option ID = 2146]
In vertebrates, which one of the following structures is believed to have been transformed into thyroid gland? [Question ID = 592]
58)
59)
60)
61)
62)
63)
1. Pygostyle [Option ID = 2365]
2. Analstyle [Option ID = 2367]
3. Endostyle [Option ID = 2368]
4. Urostyle [Option ID = 2366]
Correct Answer :-
Endostyle [Option ID = 2368]
DNA double helix is stabilized by: [Question ID = 602]
1. Hydrophobic interactions only [Option ID = 2408]
2. H-bonds only [Option ID = 2405]
3. H-bonds and base stacking interactions [Option ID = 2406]
4. Electrostatic interactions [Option ID = 2407]
Correct Answer :-
H-bonds and base stacking interactions [Option ID = 2406]
Three forms of Daphnia are found in varying seasons. This phenomenon is called: [Question ID = 593]
1. Poly morphism [Option ID = 2369]
2. Seasonal peroidicity [Option ID = 2371]
3. Adaptation [Option ID = 2372]
4. Cyclomorphism [Option ID = 2370]
Correct Answer :-
Cyclomorphism [Option ID = 2370]
A gene showing co-dominance
[Question ID = 526]
1. Has alleles tightly linked on the same chromosome [Option ID = 2103]
2. Has alleles expressed at the same time in development [Option ID = 2104]
3. Has one allele dominant to the other [Option ID = 2101]
4. Has both alleles independently expressed in heterozygote [Option ID = 2102]
Correct Answer :-
Has both alleles independently expressed in heterozygote [Option ID = 2102]
If the atrioventricular node could be surgically removed from the heart without disrupting signal transmission to bundle of His,
then?
[Question ID = 587]
1. atria & ventricle would contract almost simultaneously [Option ID = 2348]
2. the heart rate would be decreased. [Option ID = 2345]
3. only artia would contract. [Option ID = 2346]
4. only ventricle would contract. [Option ID = 2347]
Correct Answer :-
atria & ventricle would contract almost simultaneously [Option ID = 2348]
A double stranded DNA has 30 mole percent of cytosine. What would be the mole percent of adenine in it?
[Question ID = 605]
1. 40 [Option ID = 2419]
2. 20 [Option ID = 2417]
3. 60 [Option ID = 2420]
4. 30 [Option ID = 2418]
Correct Answer :-
20 [Option ID = 2417]
A protein having both structural and enzymatic properties is
[Question ID = 535]
64)
65)
66)
67)
68)
69)
1. Histone [Option ID = 2140]
2. Trypsin [Option ID = 2138]
3. Myosin [Option ID = 2139]
4. Collagen [Option ID = 2137]
Correct Answer :-
Myosin [Option ID = 2139]
Bilateral symmetry in certain group of Phylum Mollusca is lost due to
[Question ID = 595]
1. reversion and rotation [Option ID = 2379]
2. expansion and torsion [Option ID = 2380]
3. torsion [Option ID = 2378]
4. rotation [Option ID = 2377]
Correct Answer :-
torsion [Option ID = 2378]
Bilaterally symmetrical, acoelomate organisms are:
[Question ID = 577]
1. platyhelminthes [Option ID = 2306]
2. sponges [Option ID = 2305]
3. acinadia [Option ID = 2308]
4. nemathelminthes [Option ID = 2307]
Correct Answer :-
platyhelminthes [Option ID = 2306]
Honey bee society is [Question ID = 549]
1. Eusocial [Option ID = 2196]
2. Subsocial [Option ID = 2195]
3. Communal [Option ID = 2193]
4. Parasocial [Option ID = 2194]
Correct Answer :-
Eusocial [Option ID = 2196]
DNA finger-printing employs
[Question ID = 588]
1. pseudo-genes as probes. [Option ID = 2352]
2. unique and house-keeping genes as probes [Option ID = 2349]
3. variable number tandem repeats as probes [Option ID = 2351]
4. specific metabolic genes as probes [Option ID = 2350]
Correct Answer :-
variable number tandem repeats as probes [Option ID = 2351]
BLAST program is used in
[Question ID = 564]
1. DNA sequencing [Option ID = 2253]
2. DNA bar coding [Option ID = 2255]
3. Amino Acid sequencing [Option ID = 2254]
4. Bioinformatics [Option ID = 2256]
Correct Answer :-
Bioinformatics [Option ID = 2256]
Hemophilia is an example of a trait that is carried as a ____________________.
70)
71)
72)
73)
74)
[Question ID = 543]
1. Autosomal dominant [Option ID = 2169]
2. Autosomal recessive [Option ID = 2170]
3. Sex-linked dominant [Option ID = 2171]
4. Sex linked recessive [Option ID = 2172]
Correct Answer :-
Sex linked recessive [Option ID = 2172]
Schizocoelic phyla are
[Question ID = 520]
1. Annelida, Arthropoda, and Mollusca [Option ID = 2079]
2. Arthropoda, Mollusca and Echinodermata [Option ID = 2080]
3. Platyhelminthes, Aschelminthes and Annelida [Option ID = 2078]
4. Protozoa, Porifera, Cnidarians, and Platyhelminthes [Option ID = 2077]
Correct Answer :-
Annelida, Arthropoda, and Mollusca [Option ID = 2079]
In terrestrial vertebrates, which of the following structures did not arise from the pharyngeal pouches?
[Question ID = 522]
1. intervertebral discs [Option ID = 2087]
2. Eustachian tube [Option ID = 2085]
3. parathyroid gland [Option ID = 2088]
4. middle ear [Option ID = 2086]
Correct Answer :-
intervertebral discs [Option ID = 2087]
Species inhabiting in different geographical regions are known as
[Question ID = 545]
1. allopatric [Option ID = 2177]
2. biospecies [Option ID = 2180]
3. sibling species [Option ID = 2178]
4. sympatric [Option ID = 2179]
Correct Answer :-
allopatric [Option ID = 2177]
Frog oocytes do not swell in hypotonic solutions. The most plausible explanation for this is the absence of:
[Question ID = 571]
1. Aquaporins [Option ID = 2282]
2. K+ channels [Option ID = 2284]
3. Na+ channels [Option ID = 2283]
4. Na+ K+ ATPase [Option ID = 2281]
Correct Answer :-
Aquaporins [Option ID = 2282]
Nucleosome core is a structural unit of chromomatin
[Question ID = 616]
1. consisting of 8 histones molecules and a specific length of DNA [Option ID = 2463]
2. consisting of 8 histones molecules and a specific sequence of DNA [Option ID = 2462]
3. consisting of 4 histones molecules and a specific length of DNA [Option ID = 2461]
4. consisting of 4 histones molecules and a specific sequence of DNA [Option ID = 2464]
Correct Answer :-
75)
76)
77)
78)
79)
consisting of 8 histones molecules and a specific length of DNA [Option ID = 2463]
Melting temperature (Tm) of double stranded DNA increases with
[Question ID = 554]
1. Increases by modified bases [Option ID = 2216]
2. Increase in number of adenine/thymine bases [Option ID = 2214]
3. Increase number of guanine/cytosine bases [Option ID = 2213]
4. Bases have no effect on Tm of DNA [Option ID = 2215]
Correct Answer :-
Increase number of guanine/cytosine bases [Option ID = 2213]
Unfolded or misfolded proteins are degraded in:
[Question ID = 560]
1. Golgi [Option ID = 2239]
2. Endoplasmic reticulum [Option ID = 2240]
3. Mitochondria [Option ID = 2237]
4. Proteasomes [Option ID = 2238]
Correct Answer :-
Proteasomes [Option ID = 2238]
Which of the following communicable diseases is NOT transmitted by Aedes? [Question ID = 539]
1. Dengue haemorrhagic fever [Option ID = 2153]
2. Yellow fever [Option ID = 2156]
3. Chikungunia [Option ID = 2155]
4. Sleeping sickness [Option ID = 2154]
Correct Answer :-
Sleeping sickness [Option ID = 2154]
Which of the following is semiautonomous organelle? [Question ID = 541]
1. Golgi complex [Option ID = 2163]
2. Mitochondria [Option ID = 2162]
3. Nucleus [Option ID = 2161]
4. Ribosomes [Option ID = 2164]
Correct Answer :-
Mitochondria [Option ID = 2162]
[Question ID = 612]
1. [Option ID = 2448]
2. [Option ID = 2446]
3. [Option ID = 2445]
80)
81)
4. [Option ID = 2447]
Correct Answer :-
[Option ID = 2445]
[Question ID = 599]
1. [Option ID = 2396]
2. [Option ID = 2394]
3. [Option ID = 2393]
4. [Option ID = 2395]
Correct Answer :-
[Option ID = 2395]
[Question ID = 576]
1. [Option ID = 2304]
2. [Option ID = 2301]
3. [Option ID = 2302]
4. [Option ID = 2303]
FirstRanker.com - FirstRanker's Choice
1)
2)
3)
4)
5)
DU MSc Zoology
Topic:- DU_J18_MSC_ZOO
Which of the following is NOT a characteristic of lakes suffering from organic pollution?
[Question ID = 582]
1. High microbial concentration [Option ID = 2325]
2. High biochemical oxygen demand [Option ID = 2327]
3. Low phosphate levels [Option ID = 2328]
4. Frequent algal blooms [Option ID = 2326]
Correct Answer :-
Low phosphate levels [Option ID = 2328]
Which of the following was probably absent at the time of origin of life ?
[Question ID = 546]
1. Oxygen [Option ID = 2182]
2. Hydrogen [Option ID = 2181]
3. Methane [Option ID = 2183]
4. Carbon dioxide [Option ID = 2184]
Correct Answer :-
Oxygen [Option ID = 2182]
Which of the following genotypes causes Klinefelter syndrome?
[Question ID = 530]
1. XYY [Option ID = 2120]
2. XO [Option ID = 2117]
3. XXY [Option ID = 2118]
4. XX [Option ID = 2119]
Correct Answer :-
XXY [Option ID = 2118]
Which of the following is wrong match for enzyme classification?
[Question ID = 601]
1. EC 2 ? Trasnferases [Option ID = 2402]
2. EC 3- Hydrolases [Option ID = 2403]
3. EC 1 - Oxidoreductases [Option ID = 2401]
4. EC 4- Ligases [Option ID = 2404]
Correct Answer :-
EC 4- Ligases [Option ID = 2404]
Which of the following is not a possible explanation for the rapid rate of evolution of beak shape in Darwin?s finches?
[Question ID = 614]
1. Strong selection pressure [Option ID = 2455]
2. Small population size [Option ID = 2456]
3. High mutation rate [Option ID = 2453]
4. High emigrations and immigration rate [Option ID = 2454]
Correct Answer :-
High mutation rate [Option ID = 2453]
6)
7)
8)
9)
10)
11)
Which of the following animals is primarily an ectotherm?
[Question ID = 542]
1. Hawk [Option ID = 2165]
2. Lizard [Option ID = 2166]
3. Elephant [Option ID = 2168]
4. Shrew [Option ID = 2167]
Correct Answer :-
Lizard [Option ID = 2166]
Which of the following technique was used by Messelon and Stahl to separate DNA labeled with 15
N
from 14
N
?
[Question ID = 609]
1. Ion-exchange chromatography [Option ID = 2436]
2. Molecular-sieve filtration chromatography [Option ID = 2435]
3. Agarose Gel electrophoresis [Option ID = 2434]
4. CsCl density gradient centrifugation [Option ID = 2433]
Correct Answer :-
CsCl density gradient centrifugation [Option ID = 2433]
Which of the following molecule is most abundant in living system?
[Question ID = 608]
1. Water [Option ID = 2432]
2. Cellulose [Option ID = 2430]
3. Protein [Option ID = 2429]
4. Starch [Option ID = 2431]
Correct Answer :-
Water [Option ID = 2432]
Which system is active under stress?
[Question ID = 536]
1. Sympathetic nervous system [Option ID = 2142]
2. Somatic nervous system [Option ID = 2143]
3. Parasympathetic nervous system [Option ID = 2141]
4. Complete autonomic nervous system [Option ID = 2144]
Correct Answer :-
Sympathetic nervous system [Option ID = 2142]
Which is the first National park established in India:
[Question ID = 583]
1. Jim Corbet National Park [Option ID = 2329]
2. Periyar National Park [Option ID = 2332]
3. Kanziranga National Park [Option ID = 2330]
4. Kanha National Park [Option ID = 2331]
Correct Answer :-
Jim Corbet National Park [Option ID = 2329]
Doubling time for E. coli is 20 min. If the initial number of bacterium in a culture is 100, what would be number of bacterium after 60
min. [Question ID = 606]
1. 300 [Option ID = 2422]
2. 400 [Option ID = 2423]
3. 100 [Option ID = 2421]
4. 800 [Option ID = 2424]
12)
13)
14)
15)
16)
17)
Correct Answer :-
800 [Option ID = 2424]
X-chromosome inactivation
[Question ID = 527]
1. Is the cause of the y chromosome being genetically inactive [Option ID = 2106]
2. Takes place in humans so that the same X chromosome is inactive in all the cells of a female [Option ID = 2107]
3. Normally takes place in males but not in females [Option ID = 2105]
4. Results in genetically turning off one of the two X chromosome in female mammals [Option ID = 2108]
Correct Answer :-
Results in genetically turning off one of the two X chromosome in female mammals [Option ID = 2108]
In ecological succession from pioneer to climax community, the biomass shall:
[Question ID = 584]
1. Increase and then decrease [Option ID = 2334]
2. Increase continuously [Option ID = 2336]
3. Decrease [Option ID = 2333]
4. No relation [Option ID = 2335]
Correct Answer :-
Increase continuously [Option ID = 2336]
Import of glucose by the liver cell:
[Question ID = 569]
1. Is dependent on hydrolysis of ATP [Option ID = 2273]
2. Is facilitated by GLUT2 [Option ID = 2276]
3. Occurs throughout the phospholipid bilayer [Option ID = 2275]
4. Requires expression of GLUT1 on the plasma membrane [Option ID = 2274]
Correct Answer :-
Is facilitated by GLUT2 [Option ID = 2276]
The origin of the jaw in the gnathostomes is the
[Question ID = 524]
1. hyoid [Option ID = 2096]
2. gill arch [Option ID = 2093]
3. notochord [Option ID = 2095]
4. bones supporting the cranium [Option ID = 2094]
Correct Answer :-
gill arch [Option ID = 2093]
The dynamics of which cytoskeletal element changes in a moving amoeba?
[Question ID = 568]
1. Intermediate filaments [Option ID = 2271]
2. MreB [Option ID = 2272]
3. Microtubules [Option ID = 2269]
4. Microfilaments [Option ID = 2270]
Correct Answer :-
Microfilaments [Option ID = 2270]
Repeat core sequences consisting of 2, 3, or 4 base pairs are known as what?
[Question ID = 531]
18)
19)
20)
21)
22)
1. Single nucleotide polymorphisms (SNPs) [Option ID = 2121]
2. Minisatellites [Option ID = 2123]
3. Telomeres [Option ID = 2124]
4. Microsatellites [Option ID = 2122]
Correct Answer :-
Microsatellites [Option ID = 2122]
A haltere is a
[Question ID = 551]
1. Device used by a male insect to attract female for mating [Option ID = 2204]
2. balancing organ of housefly [Option ID = 2203]
3. sense organ of butterfly [Option ID = 2201]
4. modified forewing of beetle [Option ID = 2202]
Correct Answer :-
balancing organ of housefly [Option ID = 2203]
Linolenic (C18: 9,12,15) is an essential fatty acid for human because:
[Question ID = 555]
1. Lenolenic acid is available in fruits [Option ID = 2217]
2. Lenolenic acid gives much energy that palmitic acid [Option ID = 2219]
3. It is unsaturated fatty acid [Option ID = 2220]
4. Human cannot introduce double bond beyond 9-10 carbon of fatty acids [Option ID = 2218]
Correct Answer :-
Human cannot introduce double bond beyond 9-10 carbon of fatty acids [Option ID = 2218]
Passive immunity is obtained by:
[Question ID = 589]
1. Injecting the serum of another animal/individual containing antitoxin [Option ID = 2354]
2. Our own body cells preparing antibodies [Option ID = 2353]
3. Blood transfusion and blood clotting [Option ID = 2356]
4. Drinking medicinal concoctions [Option ID = 2355]
Correct Answer :-
Injecting the serum of another animal/individual containing antitoxin [Option ID = 2354]
2-amino-3 hydroxy propionic acid is the chemical name for which of the following amino acid:
[Question ID = 580]
1. serine [Option ID = 2320]
2. valine [Option ID = 2319]
3. glycine [Option ID = 2317]
4. alanine [Option ID = 2318]
Correct Answer :-
serine [Option ID = 2320]
Low pH of the lysosomal compartment is maintained by
[Question ID = 613]
1. Glycolysis [Option ID = 2452]
2. Electron transport chain [Option ID = 2449]
3. Proton ATPase at the membrane [Option ID = 2450]
4. Luminal acid production [Option ID = 2451]
Correct Answer :-
Proton ATPase at the membrane [Option ID = 2450]
23)
24)
25)
26)
27)
28)
Kidney of the vertebrate embryo develops from:
[Question ID = 591]
1. Mesoderm [Option ID = 2363]
2. Archenteron [Option ID = 2364]
3. Endoderm [Option ID = 2362]
4. Ectoderm [Option ID = 2361]
Correct Answer :-
Mesoderm [Option ID = 2363]
DNA is genetic material in
[Question ID = 563]
1. Only eukaryotes [Option ID = 2251]
2. Only Prokaryotes and eukaryotes [Option ID = 2250]
3. All viruses, prokaryotes, eukaryotes [Option ID = 2249]
4. Some viruses, all prokaryotes and eukaryotes [Option ID = 2252]
Correct Answer :-
Some viruses, all prokaryotes and eukaryotes [Option ID = 2252]
Which of the following statement is NOT TRUE for a competitive inhibitor in an enzyme catalysed reaction?
[Question ID = 600]
1. Their inhibition can be reversed by increasing the substrate concentration [Option ID = 2400]
2. They compete with substrate for binding to the active site. [Option ID = 2398]
3. They are structural analogues of the substrate. [Option ID = 2397]
4. They increase the Km, and decrease the Vmax. [Option ID = 2399]
Correct Answer :-
They increase the Km, and decrease the Vmax. [Option ID = 2399]
Knee joint is a
[Question ID = 548]
1. fibrous joint [Option ID = 2192]
2. cartilaginous joint [Option ID = 2191]
3. collagenous joint [Option ID = 2189]
4. synovial joint [Option ID = 2190]
Correct Answer :-
synovial joint [Option ID = 2190]
The heaviest organelle in cell is:
[Question ID = 556]
1. Lysosomes [Option ID = 2223]
2. Ribosomes [Option ID = 2224]
3. Nucleus [Option ID = 2222]
4. Mitochondria [Option ID = 2221]
Correct Answer :-
Nucleus [Option ID = 2222]
Wallace?s line is present in between
[Question ID = 544]
1. Oriental and Australian regions [Option ID = 2173]
2. Palaearctic and Ethiopian regions [Option ID = 2176]
3. Neotropical and Nearctic regions [Option ID = 2175]
4. Ethiopian and Oriental regions [Option ID = 2174]
29)
30)
31)
32)
33)
34)
Correct Answer :-
Oriental and Australian regions [Option ID = 2173]
In bivalves, which structure secretes pearl?
[Question ID = 598]
1. Nacreous gland. [Option ID = 2392]
2. Nacreous layer [Option ID = 2391]
3. Prismatic layer [Option ID = 2390]
4. Periostracum layer [Option ID = 2389]
Correct Answer :-
Nacreous layer [Option ID = 2391]
Ampicillin inhibits:
[Question ID = 559]
1. Cell wall synthesis in bacterial cells [Option ID = 2236]
2. RNA synthesis in Bacterial cells [Option ID = 2234]
3. DNA synthesis in bacterial cells [Option ID = 2233]
4. Protein synthesis in mammalian cell [Option ID = 2235]
Correct Answer :-
Cell wall synthesis in bacterial cells [Option ID = 2236]
Hiccups can be best described as ___________.
[Question ID = 534]
1. sign of somebody remembering you [Option ID = 2136]
2. vibration of the soft palate during breathing while sleeping [Option ID = 2135]
3. jerky incomplete inspiration [Option ID = 2134]
4. forceful sudden expiration [Option ID = 2133]
Correct Answer :-
jerky incomplete inspiration [Option ID = 2134]
At Isoelectric pH the charge on protein is:
[Question ID = 553]
1. Positive charge on protein [Option ID = 2210]
2. Negative charge on protein [Option ID = 2211]
3. No charge on protein [Option ID = 2209]
4. Net charge on protein is zero [Option ID = 2212]
Correct Answer :-
Net charge on protein is zero [Option ID = 2212]
Lac is a material which is
[Question ID = 552]
1. hardened fecal matter of lac insect [Option ID = 2205]
2. protective secretion deposited by female lac insect [Option ID = 2206]
3. protective covering secreted by larva [Option ID = 2207]
4. resin secreted by the plant [Option ID = 2208]
Correct Answer :-
protective secretion deposited by female lac insect [Option ID = 2206]
Hardy-Weinberg?s law gives the concept of
[Question ID = 586]
35)
36)
37)
38)
39)
1. natural selection. [Option ID = 2344]
2. genetic drift [Option ID = 2341]
3. genetic equilibrium [Option ID = 2343]
4. mutation [Option ID = 2342]
Correct Answer :-
genetic equilibrium [Option ID = 2343]
The vertical migration of plankton is an instance of
[Question ID = 579]
1. Circadian rythmes [Option ID = 2313]
2. Circannual rythmes [Option ID = 2314]
3. photopriodism [Option ID = 2315]
4. photokinesis. [Option ID = 2316]
Correct Answer :-
Circadian rythmes [Option ID = 2313]
Treadmilling of actin filaments in the steady state occurs at G-actin concentration
[Question ID = 565]
1. Below the Cc of the (-) end [Option ID = 2257]
2. Above the Cc of the (-) end but below the Cc of the (+) end [Option ID = 2259]
3. Above the Cc of the (+) end but below the Cc of the (-) end [Option ID = 2260]
4. Above the Cc of the (+) end [Option ID = 2258]
Correct Answer :-
Above the Cc of the (+) end but below the Cc of the (-) end [Option ID = 2260]
Exon skipping is associated with:
[Question ID = 528]
1. regulatory mutations [Option ID = 2110]
2. RNA processing mutations [Option ID = 2111]
3. nonsense mutations [Option ID = 2109]
4. silent mutations [Option ID = 2112]
Correct Answer :-
RNA processing mutations [Option ID = 2111]
Bile is produced in our body which
[Question ID = 557]
1. Act as a surfactant to emulsify lipids in intestine. [Option ID = 2226]
2. It has no role associated with our body [Option ID = 2228]
3. Helps in digestion of starch in intestinbe [Option ID = 2227]
4. Helps in controlling blood pressure [Option ID = 2225]
Correct Answer :-
Act as a surfactant to emulsify lipids in intestine. [Option ID = 2226]
The inner cell mass of mammalian blastocyst develops into,
[Question ID = 578]
1. all embryonic structures [Option ID = 2311]
2. embryonic endoderm [Option ID = 2309]
3. chorio-allantoic placenta [Option ID = 2312]
4. yolk-sac placenta [Option ID = 2310]
Correct Answer :-
all embryonic structures [Option ID = 2311]
40)
41)
42)
43)
44)
45)
The isoform/s of actin present in muscle cells
[Question ID = 566]
1. beta-actin [Option ID = 2263]
2. beta-and gamma-actin [Option ID = 2264]
3. alpha-actin [Option ID = 2261]
4. alpha and beta-actin [Option ID = 2262]
Correct Answer :-
alpha-actin [Option ID = 2261]
The four postulates of the Chemiosmotic hypothesis accounted for:
[Question ID = 574]
1. ETC, F1-F0 ATPase, cardiolipin and pmf generators [Option ID = 2295]
2. ETC, F1-F0 ATPase, cardiolipin and anion exchangers [Option ID = 2296]
3. Cardiolipin [Option ID = 2294]
4. The four complexes of the electron transport chain (ETC). [Option ID = 2293]
Correct Answer :-
ETC, F1-F0 ATPase, cardiolipin and anion exchangers [Option ID = 2296]
Cilia and flagella contains a contractile protein called:
[Question ID = 575]
1. Myosin [Option ID = 2300]
2. Tubulin [Option ID = 2298]
3. Actin [Option ID = 2299]
4. Dyenin [Option ID = 2297]
Correct Answer :-
Dyenin [Option ID = 2297]
Insects such as Drosophila undergo three molts before undergoing metamorphosis. Molting is controlled by which of the following
hormone?
[Question ID = 532]
1. juvenile hormone [Option ID = 2126]
2. growth hormone [Option ID = 2128]
3. auxin [Option ID = 2127]
4. ecdysone [Option ID = 2125]
Correct Answer :-
ecdysone [Option ID = 2125]
Injection of anti-venom to a patient for snake bite is an example of
[Question ID = 562]
1. Artificially acquired active immunity [Option ID = 2246]
2. Artificially acquired passive immunity [Option ID = 2248]
3. Naturally acquired active immunity [Option ID = 2245]
4. Naturally acquired passive immunity [Option ID = 2247]
Correct Answer :-
Artificially acquired passive immunity [Option ID = 2248]
Steroid hormones are synthesized from
[Question ID = 558]
1. Glycogen [Option ID = 2232]
2. Tryptophan [Option ID = 2229]
3. Stearic acid [Option ID = 2231]
4. Cholesterol [Option ID = 2230]
46)
47)
48)
49)
50)
51)
Correct Answer :-
Cholesterol [Option ID = 2230]
When a heterozygous offspring is crossed to homozygous recessive parent, it is called as
[Question ID = 533]
1. Test cross [Option ID = 2129]
2. Reciprocal cross [Option ID = 2130]
3. Dihybrid cross [Option ID = 2132]
4. Monohybrid cross [Option ID = 2131]
Correct Answer :-
Test cross [Option ID = 2129]
Identify the statement that is NOT TRUE for Iron-sulphur clusters
[Question ID = 573]
1. These are prosthetic groups of succinate-coenzyme Q reductase complex. [Option ID = 2289]
2. These accept and release electrons one at a time [Option ID = 2291]
3. They contain Fe bonded to inorganic S atoms and S atoms on cysteine residues of proteins [Option ID = 2290]
4. They are always associated with cytochromes. [Option ID = 2292]
Correct Answer :-
They are always associated with cytochromes. [Option ID = 2292]
Of the early fish, which led to the extant fish of today?
[Question ID = 525]
1. cephalochordates [Option ID = 2099]
2. acanthodians [Option ID = 2100]
3. placoderms [Option ID = 2098]
4. heterostracans [Option ID = 2097]
Correct Answer :-
acanthodians [Option ID = 2100]
Water is a good solvent for inorganic salts because
[Question ID = 615]
1. hydrogen bond [Option ID = 2459]
2. dielectric constant [Option ID = 2457]
3. polarity [Option ID = 2458]
4. conductivity [Option ID = 2460]
Correct Answer :-
If the sequence of coding strand in a transcription unit is as follows: 5?-GAATTGCCAATTGCAGTC-3?, the sequence of mRNA
transcribed from the transcription unit would be, [Question ID = 604]
1. 3?-GAAUUGCCAAUUGCAGUC-5? [Option ID = 2416]
2. 5?-CUUAACGGUUAACGUCAG-3? [Option ID = 2414]
3. 5?-GAAUUGCCAAUUGCAGUC-3? [Option ID = 2413]
4. 5?-GACUGCAAUUGGCAAUUC-3? [Option ID = 2415]
Correct Answer :-
5?-GAAUUGCCAAUUGCAGUC-3? [Option ID = 2413]
In a Robertsonian translocation fusion occurs at the:
[Question ID = 529]
1. centromeres [Option ID = 2114]
2. histones [Option ID = 2115]
3. telomeres [Option ID = 2113]
52)
53)
54)
55)
56)
57)
4. ends of the long arms [Option ID = 2116]
Correct Answer :-
centromeres [Option ID = 2114]
Symporters are cotransporters that transport:
[Question ID = 570]
1. Cations and anions in the opposite direction. [Option ID = 2278]
2. Glucose against its concentration gradient. [Option ID = 2280]
3. Small molecules and gases in the same direction. [Option ID = 2277]
4. Na+ ions and glucose against the concentration gradient. [Option ID = 2279]
Correct Answer :-
Glucose against its concentration gradient. [Option ID = 2280]
Bidirectional movement of vesicles requires
[Question ID = 567]
1. Kinesin I [Option ID = 2265]
2. Association of (+) and (-) end-directed motors [Option ID = 2268]
3. A flexible neck region on the motor protein [Option ID = 2267]
4. Microtubules and microfilaments [Option ID = 2266]
Correct Answer :-
Association of (+) and (-) end-directed motors [Option ID = 2268]
Pharyngeal gill slits
[Question ID = 521]
1. are not found in protochordates, but are present in vertebrates, at least during the embryonic life [Option ID = 2084]
2. are found in higher inverterates and vertebrates [Option ID = 2083]
3. are found in fishes, crabs, snails, aquatic insects [Option ID = 2082]
4. are unique chordate characteristic [Option ID = 2081]
Correct Answer :-
are unique chordate characteristic [Option ID = 2081]
Three pg of a hypothetical protein-X is present in a cell. How many molecules of protein-X would be present in a cell, if the molecular
weight of the protein is 30000? (Given, Avogaro?s number is 6 x 10
23
)
[Question ID = 610]
1. 6 x 10
15
[Option ID = 2439]
2. 6 x 10
7
[Option ID = 2438]
3. 6 x 10
23
[Option ID = 2440]
4. 6 x 10
6
[Option ID = 2437]
Correct Answer :-
6 x 10
7
[Option ID = 2438]
Ciliated pseudostratified columnar epithelia are found in
[Question ID = 537]
1. membranous part of male vas deferens [Option ID = 2147]
2. linings of the trachea & upper respiratory tract [Option ID = 2146]
3. lining of the trachea [Option ID = 2145]
4. Vagina [Option ID = 2148]
Correct Answer :-
linings of the trachea & upper respiratory tract [Option ID = 2146]
In vertebrates, which one of the following structures is believed to have been transformed into thyroid gland? [Question ID = 592]
58)
59)
60)
61)
62)
63)
1. Pygostyle [Option ID = 2365]
2. Analstyle [Option ID = 2367]
3. Endostyle [Option ID = 2368]
4. Urostyle [Option ID = 2366]
Correct Answer :-
Endostyle [Option ID = 2368]
DNA double helix is stabilized by: [Question ID = 602]
1. Hydrophobic interactions only [Option ID = 2408]
2. H-bonds only [Option ID = 2405]
3. H-bonds and base stacking interactions [Option ID = 2406]
4. Electrostatic interactions [Option ID = 2407]
Correct Answer :-
H-bonds and base stacking interactions [Option ID = 2406]
Three forms of Daphnia are found in varying seasons. This phenomenon is called: [Question ID = 593]
1. Poly morphism [Option ID = 2369]
2. Seasonal peroidicity [Option ID = 2371]
3. Adaptation [Option ID = 2372]
4. Cyclomorphism [Option ID = 2370]
Correct Answer :-
Cyclomorphism [Option ID = 2370]
A gene showing co-dominance
[Question ID = 526]
1. Has alleles tightly linked on the same chromosome [Option ID = 2103]
2. Has alleles expressed at the same time in development [Option ID = 2104]
3. Has one allele dominant to the other [Option ID = 2101]
4. Has both alleles independently expressed in heterozygote [Option ID = 2102]
Correct Answer :-
Has both alleles independently expressed in heterozygote [Option ID = 2102]
If the atrioventricular node could be surgically removed from the heart without disrupting signal transmission to bundle of His,
then?
[Question ID = 587]
1. atria & ventricle would contract almost simultaneously [Option ID = 2348]
2. the heart rate would be decreased. [Option ID = 2345]
3. only artia would contract. [Option ID = 2346]
4. only ventricle would contract. [Option ID = 2347]
Correct Answer :-
atria & ventricle would contract almost simultaneously [Option ID = 2348]
A double stranded DNA has 30 mole percent of cytosine. What would be the mole percent of adenine in it?
[Question ID = 605]
1. 40 [Option ID = 2419]
2. 20 [Option ID = 2417]
3. 60 [Option ID = 2420]
4. 30 [Option ID = 2418]
Correct Answer :-
20 [Option ID = 2417]
A protein having both structural and enzymatic properties is
[Question ID = 535]
64)
65)
66)
67)
68)
69)
1. Histone [Option ID = 2140]
2. Trypsin [Option ID = 2138]
3. Myosin [Option ID = 2139]
4. Collagen [Option ID = 2137]
Correct Answer :-
Myosin [Option ID = 2139]
Bilateral symmetry in certain group of Phylum Mollusca is lost due to
[Question ID = 595]
1. reversion and rotation [Option ID = 2379]
2. expansion and torsion [Option ID = 2380]
3. torsion [Option ID = 2378]
4. rotation [Option ID = 2377]
Correct Answer :-
torsion [Option ID = 2378]
Bilaterally symmetrical, acoelomate organisms are:
[Question ID = 577]
1. platyhelminthes [Option ID = 2306]
2. sponges [Option ID = 2305]
3. acinadia [Option ID = 2308]
4. nemathelminthes [Option ID = 2307]
Correct Answer :-
platyhelminthes [Option ID = 2306]
Honey bee society is [Question ID = 549]
1. Eusocial [Option ID = 2196]
2. Subsocial [Option ID = 2195]
3. Communal [Option ID = 2193]
4. Parasocial [Option ID = 2194]
Correct Answer :-
Eusocial [Option ID = 2196]
DNA finger-printing employs
[Question ID = 588]
1. pseudo-genes as probes. [Option ID = 2352]
2. unique and house-keeping genes as probes [Option ID = 2349]
3. variable number tandem repeats as probes [Option ID = 2351]
4. specific metabolic genes as probes [Option ID = 2350]
Correct Answer :-
variable number tandem repeats as probes [Option ID = 2351]
BLAST program is used in
[Question ID = 564]
1. DNA sequencing [Option ID = 2253]
2. DNA bar coding [Option ID = 2255]
3. Amino Acid sequencing [Option ID = 2254]
4. Bioinformatics [Option ID = 2256]
Correct Answer :-
Bioinformatics [Option ID = 2256]
Hemophilia is an example of a trait that is carried as a ____________________.
70)
71)
72)
73)
74)
[Question ID = 543]
1. Autosomal dominant [Option ID = 2169]
2. Autosomal recessive [Option ID = 2170]
3. Sex-linked dominant [Option ID = 2171]
4. Sex linked recessive [Option ID = 2172]
Correct Answer :-
Sex linked recessive [Option ID = 2172]
Schizocoelic phyla are
[Question ID = 520]
1. Annelida, Arthropoda, and Mollusca [Option ID = 2079]
2. Arthropoda, Mollusca and Echinodermata [Option ID = 2080]
3. Platyhelminthes, Aschelminthes and Annelida [Option ID = 2078]
4. Protozoa, Porifera, Cnidarians, and Platyhelminthes [Option ID = 2077]
Correct Answer :-
Annelida, Arthropoda, and Mollusca [Option ID = 2079]
In terrestrial vertebrates, which of the following structures did not arise from the pharyngeal pouches?
[Question ID = 522]
1. intervertebral discs [Option ID = 2087]
2. Eustachian tube [Option ID = 2085]
3. parathyroid gland [Option ID = 2088]
4. middle ear [Option ID = 2086]
Correct Answer :-
intervertebral discs [Option ID = 2087]
Species inhabiting in different geographical regions are known as
[Question ID = 545]
1. allopatric [Option ID = 2177]
2. biospecies [Option ID = 2180]
3. sibling species [Option ID = 2178]
4. sympatric [Option ID = 2179]
Correct Answer :-
allopatric [Option ID = 2177]
Frog oocytes do not swell in hypotonic solutions. The most plausible explanation for this is the absence of:
[Question ID = 571]
1. Aquaporins [Option ID = 2282]
2. K+ channels [Option ID = 2284]
3. Na+ channels [Option ID = 2283]
4. Na+ K+ ATPase [Option ID = 2281]
Correct Answer :-
Aquaporins [Option ID = 2282]
Nucleosome core is a structural unit of chromomatin
[Question ID = 616]
1. consisting of 8 histones molecules and a specific length of DNA [Option ID = 2463]
2. consisting of 8 histones molecules and a specific sequence of DNA [Option ID = 2462]
3. consisting of 4 histones molecules and a specific length of DNA [Option ID = 2461]
4. consisting of 4 histones molecules and a specific sequence of DNA [Option ID = 2464]
Correct Answer :-
75)
76)
77)
78)
79)
consisting of 8 histones molecules and a specific length of DNA [Option ID = 2463]
Melting temperature (Tm) of double stranded DNA increases with
[Question ID = 554]
1. Increases by modified bases [Option ID = 2216]
2. Increase in number of adenine/thymine bases [Option ID = 2214]
3. Increase number of guanine/cytosine bases [Option ID = 2213]
4. Bases have no effect on Tm of DNA [Option ID = 2215]
Correct Answer :-
Increase number of guanine/cytosine bases [Option ID = 2213]
Unfolded or misfolded proteins are degraded in:
[Question ID = 560]
1. Golgi [Option ID = 2239]
2. Endoplasmic reticulum [Option ID = 2240]
3. Mitochondria [Option ID = 2237]
4. Proteasomes [Option ID = 2238]
Correct Answer :-
Proteasomes [Option ID = 2238]
Which of the following communicable diseases is NOT transmitted by Aedes? [Question ID = 539]
1. Dengue haemorrhagic fever [Option ID = 2153]
2. Yellow fever [Option ID = 2156]
3. Chikungunia [Option ID = 2155]
4. Sleeping sickness [Option ID = 2154]
Correct Answer :-
Sleeping sickness [Option ID = 2154]
Which of the following is semiautonomous organelle? [Question ID = 541]
1. Golgi complex [Option ID = 2163]
2. Mitochondria [Option ID = 2162]
3. Nucleus [Option ID = 2161]
4. Ribosomes [Option ID = 2164]
Correct Answer :-
Mitochondria [Option ID = 2162]
[Question ID = 612]
1. [Option ID = 2448]
2. [Option ID = 2446]
3. [Option ID = 2445]
80)
81)
4. [Option ID = 2447]
Correct Answer :-
[Option ID = 2445]
[Question ID = 599]
1. [Option ID = 2396]
2. [Option ID = 2394]
3. [Option ID = 2393]
4. [Option ID = 2395]
Correct Answer :-
[Option ID = 2395]
[Question ID = 576]
1. [Option ID = 2304]
2. [Option ID = 2301]
3. [Option ID = 2302]
4. [Option ID = 2303]
82)
83)
84)
85)
86)
87)
Correct Answer :-
[Option ID = 2304]
[Question ID = 597]
1. 8.25 [Option ID = 2385]
2. 6.98 [Option ID = 2388]
3. 7.05 [Option ID = 2386]
4. 6.58 [Option ID = 2387]
Correct Answer :-
6.98 [Option ID = 2388]
If a colour blind female marries a normal male, their children will be [Question ID = 547]
1. normal sons and normal daughters [Option ID = 2188]
2. normal sons and carrier daughters [Option ID = 2187]
3. colour blind sons and colour blind daughters [Option ID = 2185]
4. colour blind sons and carrier daughters [Option ID = 2186]
Correct Answer :-
colour blind sons and carrier daughters [Option ID = 2186]
Y-shaped chaveron bone is present in [Question ID = 550]
1. thoracic vertebrae of mammal [Option ID = 2197]
2. caudal vertebrae of reptile [Option ID = 2199]
3. cervical vertebrae of bird [Option ID = 2198]
4. lumbar vertebrae of amphibian [Option ID = 2200]
Correct Answer :-
caudal vertebrae of reptile [Option ID = 2199]
The heart is not ventral in position in [Question ID = 519]
1. Fish [Option ID = 2074]
2. Frog [Option ID = 2073]
3. Lamprey [Option ID = 2075]
4. Crabs [Option ID = 2076]
Correct Answer :-
Crabs [Option ID = 2076]
What would be the phenotype of E. coli for lac-operon, if the genotype is i+ o- z+ y+ a+?
[Question ID = 603]
1. It would be repressed but inducible by IPTG. [Option ID = 2409]
2. It would be repressed and not induced by IPTG. [Option ID = 2411]
3. It would show constitutive expression of structural genes. [Option ID = 2410]
4. It would show constitutive expression of structural genes whose expression would further be enhanced by IPTG. [Option ID = 2412]
Correct Answer :-
It would show constitutive expression of structural genes. [Option ID = 2410]
Non-disjunction means:
[Question ID = 594]
1. one chromosome being lost [Option ID = 2376]
2. loss of a part of chromosome [Option ID = 2373]
3. duplication of a segment of a chromosome [Option ID = 2374]
4. failure of chromosome pairs to separate during anaphase [Option ID = 2375]
FirstRanker.com - FirstRanker's Choice
1)
2)
3)
4)
5)
DU MSc Zoology
Topic:- DU_J18_MSC_ZOO
Which of the following is NOT a characteristic of lakes suffering from organic pollution?
[Question ID = 582]
1. High microbial concentration [Option ID = 2325]
2. High biochemical oxygen demand [Option ID = 2327]
3. Low phosphate levels [Option ID = 2328]
4. Frequent algal blooms [Option ID = 2326]
Correct Answer :-
Low phosphate levels [Option ID = 2328]
Which of the following was probably absent at the time of origin of life ?
[Question ID = 546]
1. Oxygen [Option ID = 2182]
2. Hydrogen [Option ID = 2181]
3. Methane [Option ID = 2183]
4. Carbon dioxide [Option ID = 2184]
Correct Answer :-
Oxygen [Option ID = 2182]
Which of the following genotypes causes Klinefelter syndrome?
[Question ID = 530]
1. XYY [Option ID = 2120]
2. XO [Option ID = 2117]
3. XXY [Option ID = 2118]
4. XX [Option ID = 2119]
Correct Answer :-
XXY [Option ID = 2118]
Which of the following is wrong match for enzyme classification?
[Question ID = 601]
1. EC 2 ? Trasnferases [Option ID = 2402]
2. EC 3- Hydrolases [Option ID = 2403]
3. EC 1 - Oxidoreductases [Option ID = 2401]
4. EC 4- Ligases [Option ID = 2404]
Correct Answer :-
EC 4- Ligases [Option ID = 2404]
Which of the following is not a possible explanation for the rapid rate of evolution of beak shape in Darwin?s finches?
[Question ID = 614]
1. Strong selection pressure [Option ID = 2455]
2. Small population size [Option ID = 2456]
3. High mutation rate [Option ID = 2453]
4. High emigrations and immigration rate [Option ID = 2454]
Correct Answer :-
High mutation rate [Option ID = 2453]
6)
7)
8)
9)
10)
11)
Which of the following animals is primarily an ectotherm?
[Question ID = 542]
1. Hawk [Option ID = 2165]
2. Lizard [Option ID = 2166]
3. Elephant [Option ID = 2168]
4. Shrew [Option ID = 2167]
Correct Answer :-
Lizard [Option ID = 2166]
Which of the following technique was used by Messelon and Stahl to separate DNA labeled with 15
N
from 14
N
?
[Question ID = 609]
1. Ion-exchange chromatography [Option ID = 2436]
2. Molecular-sieve filtration chromatography [Option ID = 2435]
3. Agarose Gel electrophoresis [Option ID = 2434]
4. CsCl density gradient centrifugation [Option ID = 2433]
Correct Answer :-
CsCl density gradient centrifugation [Option ID = 2433]
Which of the following molecule is most abundant in living system?
[Question ID = 608]
1. Water [Option ID = 2432]
2. Cellulose [Option ID = 2430]
3. Protein [Option ID = 2429]
4. Starch [Option ID = 2431]
Correct Answer :-
Water [Option ID = 2432]
Which system is active under stress?
[Question ID = 536]
1. Sympathetic nervous system [Option ID = 2142]
2. Somatic nervous system [Option ID = 2143]
3. Parasympathetic nervous system [Option ID = 2141]
4. Complete autonomic nervous system [Option ID = 2144]
Correct Answer :-
Sympathetic nervous system [Option ID = 2142]
Which is the first National park established in India:
[Question ID = 583]
1. Jim Corbet National Park [Option ID = 2329]
2. Periyar National Park [Option ID = 2332]
3. Kanziranga National Park [Option ID = 2330]
4. Kanha National Park [Option ID = 2331]
Correct Answer :-
Jim Corbet National Park [Option ID = 2329]
Doubling time for E. coli is 20 min. If the initial number of bacterium in a culture is 100, what would be number of bacterium after 60
min. [Question ID = 606]
1. 300 [Option ID = 2422]
2. 400 [Option ID = 2423]
3. 100 [Option ID = 2421]
4. 800 [Option ID = 2424]
12)
13)
14)
15)
16)
17)
Correct Answer :-
800 [Option ID = 2424]
X-chromosome inactivation
[Question ID = 527]
1. Is the cause of the y chromosome being genetically inactive [Option ID = 2106]
2. Takes place in humans so that the same X chromosome is inactive in all the cells of a female [Option ID = 2107]
3. Normally takes place in males but not in females [Option ID = 2105]
4. Results in genetically turning off one of the two X chromosome in female mammals [Option ID = 2108]
Correct Answer :-
Results in genetically turning off one of the two X chromosome in female mammals [Option ID = 2108]
In ecological succession from pioneer to climax community, the biomass shall:
[Question ID = 584]
1. Increase and then decrease [Option ID = 2334]
2. Increase continuously [Option ID = 2336]
3. Decrease [Option ID = 2333]
4. No relation [Option ID = 2335]
Correct Answer :-
Increase continuously [Option ID = 2336]
Import of glucose by the liver cell:
[Question ID = 569]
1. Is dependent on hydrolysis of ATP [Option ID = 2273]
2. Is facilitated by GLUT2 [Option ID = 2276]
3. Occurs throughout the phospholipid bilayer [Option ID = 2275]
4. Requires expression of GLUT1 on the plasma membrane [Option ID = 2274]
Correct Answer :-
Is facilitated by GLUT2 [Option ID = 2276]
The origin of the jaw in the gnathostomes is the
[Question ID = 524]
1. hyoid [Option ID = 2096]
2. gill arch [Option ID = 2093]
3. notochord [Option ID = 2095]
4. bones supporting the cranium [Option ID = 2094]
Correct Answer :-
gill arch [Option ID = 2093]
The dynamics of which cytoskeletal element changes in a moving amoeba?
[Question ID = 568]
1. Intermediate filaments [Option ID = 2271]
2. MreB [Option ID = 2272]
3. Microtubules [Option ID = 2269]
4. Microfilaments [Option ID = 2270]
Correct Answer :-
Microfilaments [Option ID = 2270]
Repeat core sequences consisting of 2, 3, or 4 base pairs are known as what?
[Question ID = 531]
18)
19)
20)
21)
22)
1. Single nucleotide polymorphisms (SNPs) [Option ID = 2121]
2. Minisatellites [Option ID = 2123]
3. Telomeres [Option ID = 2124]
4. Microsatellites [Option ID = 2122]
Correct Answer :-
Microsatellites [Option ID = 2122]
A haltere is a
[Question ID = 551]
1. Device used by a male insect to attract female for mating [Option ID = 2204]
2. balancing organ of housefly [Option ID = 2203]
3. sense organ of butterfly [Option ID = 2201]
4. modified forewing of beetle [Option ID = 2202]
Correct Answer :-
balancing organ of housefly [Option ID = 2203]
Linolenic (C18: 9,12,15) is an essential fatty acid for human because:
[Question ID = 555]
1. Lenolenic acid is available in fruits [Option ID = 2217]
2. Lenolenic acid gives much energy that palmitic acid [Option ID = 2219]
3. It is unsaturated fatty acid [Option ID = 2220]
4. Human cannot introduce double bond beyond 9-10 carbon of fatty acids [Option ID = 2218]
Correct Answer :-
Human cannot introduce double bond beyond 9-10 carbon of fatty acids [Option ID = 2218]
Passive immunity is obtained by:
[Question ID = 589]
1. Injecting the serum of another animal/individual containing antitoxin [Option ID = 2354]
2. Our own body cells preparing antibodies [Option ID = 2353]
3. Blood transfusion and blood clotting [Option ID = 2356]
4. Drinking medicinal concoctions [Option ID = 2355]
Correct Answer :-
Injecting the serum of another animal/individual containing antitoxin [Option ID = 2354]
2-amino-3 hydroxy propionic acid is the chemical name for which of the following amino acid:
[Question ID = 580]
1. serine [Option ID = 2320]
2. valine [Option ID = 2319]
3. glycine [Option ID = 2317]
4. alanine [Option ID = 2318]
Correct Answer :-
serine [Option ID = 2320]
Low pH of the lysosomal compartment is maintained by
[Question ID = 613]
1. Glycolysis [Option ID = 2452]
2. Electron transport chain [Option ID = 2449]
3. Proton ATPase at the membrane [Option ID = 2450]
4. Luminal acid production [Option ID = 2451]
Correct Answer :-
Proton ATPase at the membrane [Option ID = 2450]
23)
24)
25)
26)
27)
28)
Kidney of the vertebrate embryo develops from:
[Question ID = 591]
1. Mesoderm [Option ID = 2363]
2. Archenteron [Option ID = 2364]
3. Endoderm [Option ID = 2362]
4. Ectoderm [Option ID = 2361]
Correct Answer :-
Mesoderm [Option ID = 2363]
DNA is genetic material in
[Question ID = 563]
1. Only eukaryotes [Option ID = 2251]
2. Only Prokaryotes and eukaryotes [Option ID = 2250]
3. All viruses, prokaryotes, eukaryotes [Option ID = 2249]
4. Some viruses, all prokaryotes and eukaryotes [Option ID = 2252]
Correct Answer :-
Some viruses, all prokaryotes and eukaryotes [Option ID = 2252]
Which of the following statement is NOT TRUE for a competitive inhibitor in an enzyme catalysed reaction?
[Question ID = 600]
1. Their inhibition can be reversed by increasing the substrate concentration [Option ID = 2400]
2. They compete with substrate for binding to the active site. [Option ID = 2398]
3. They are structural analogues of the substrate. [Option ID = 2397]
4. They increase the Km, and decrease the Vmax. [Option ID = 2399]
Correct Answer :-
They increase the Km, and decrease the Vmax. [Option ID = 2399]
Knee joint is a
[Question ID = 548]
1. fibrous joint [Option ID = 2192]
2. cartilaginous joint [Option ID = 2191]
3. collagenous joint [Option ID = 2189]
4. synovial joint [Option ID = 2190]
Correct Answer :-
synovial joint [Option ID = 2190]
The heaviest organelle in cell is:
[Question ID = 556]
1. Lysosomes [Option ID = 2223]
2. Ribosomes [Option ID = 2224]
3. Nucleus [Option ID = 2222]
4. Mitochondria [Option ID = 2221]
Correct Answer :-
Nucleus [Option ID = 2222]
Wallace?s line is present in between
[Question ID = 544]
1. Oriental and Australian regions [Option ID = 2173]
2. Palaearctic and Ethiopian regions [Option ID = 2176]
3. Neotropical and Nearctic regions [Option ID = 2175]
4. Ethiopian and Oriental regions [Option ID = 2174]
29)
30)
31)
32)
33)
34)
Correct Answer :-
Oriental and Australian regions [Option ID = 2173]
In bivalves, which structure secretes pearl?
[Question ID = 598]
1. Nacreous gland. [Option ID = 2392]
2. Nacreous layer [Option ID = 2391]
3. Prismatic layer [Option ID = 2390]
4. Periostracum layer [Option ID = 2389]
Correct Answer :-
Nacreous layer [Option ID = 2391]
Ampicillin inhibits:
[Question ID = 559]
1. Cell wall synthesis in bacterial cells [Option ID = 2236]
2. RNA synthesis in Bacterial cells [Option ID = 2234]
3. DNA synthesis in bacterial cells [Option ID = 2233]
4. Protein synthesis in mammalian cell [Option ID = 2235]
Correct Answer :-
Cell wall synthesis in bacterial cells [Option ID = 2236]
Hiccups can be best described as ___________.
[Question ID = 534]
1. sign of somebody remembering you [Option ID = 2136]
2. vibration of the soft palate during breathing while sleeping [Option ID = 2135]
3. jerky incomplete inspiration [Option ID = 2134]
4. forceful sudden expiration [Option ID = 2133]
Correct Answer :-
jerky incomplete inspiration [Option ID = 2134]
At Isoelectric pH the charge on protein is:
[Question ID = 553]
1. Positive charge on protein [Option ID = 2210]
2. Negative charge on protein [Option ID = 2211]
3. No charge on protein [Option ID = 2209]
4. Net charge on protein is zero [Option ID = 2212]
Correct Answer :-
Net charge on protein is zero [Option ID = 2212]
Lac is a material which is
[Question ID = 552]
1. hardened fecal matter of lac insect [Option ID = 2205]
2. protective secretion deposited by female lac insect [Option ID = 2206]
3. protective covering secreted by larva [Option ID = 2207]
4. resin secreted by the plant [Option ID = 2208]
Correct Answer :-
protective secretion deposited by female lac insect [Option ID = 2206]
Hardy-Weinberg?s law gives the concept of
[Question ID = 586]
35)
36)
37)
38)
39)
1. natural selection. [Option ID = 2344]
2. genetic drift [Option ID = 2341]
3. genetic equilibrium [Option ID = 2343]
4. mutation [Option ID = 2342]
Correct Answer :-
genetic equilibrium [Option ID = 2343]
The vertical migration of plankton is an instance of
[Question ID = 579]
1. Circadian rythmes [Option ID = 2313]
2. Circannual rythmes [Option ID = 2314]
3. photopriodism [Option ID = 2315]
4. photokinesis. [Option ID = 2316]
Correct Answer :-
Circadian rythmes [Option ID = 2313]
Treadmilling of actin filaments in the steady state occurs at G-actin concentration
[Question ID = 565]
1. Below the Cc of the (-) end [Option ID = 2257]
2. Above the Cc of the (-) end but below the Cc of the (+) end [Option ID = 2259]
3. Above the Cc of the (+) end but below the Cc of the (-) end [Option ID = 2260]
4. Above the Cc of the (+) end [Option ID = 2258]
Correct Answer :-
Above the Cc of the (+) end but below the Cc of the (-) end [Option ID = 2260]
Exon skipping is associated with:
[Question ID = 528]
1. regulatory mutations [Option ID = 2110]
2. RNA processing mutations [Option ID = 2111]
3. nonsense mutations [Option ID = 2109]
4. silent mutations [Option ID = 2112]
Correct Answer :-
RNA processing mutations [Option ID = 2111]
Bile is produced in our body which
[Question ID = 557]
1. Act as a surfactant to emulsify lipids in intestine. [Option ID = 2226]
2. It has no role associated with our body [Option ID = 2228]
3. Helps in digestion of starch in intestinbe [Option ID = 2227]
4. Helps in controlling blood pressure [Option ID = 2225]
Correct Answer :-
Act as a surfactant to emulsify lipids in intestine. [Option ID = 2226]
The inner cell mass of mammalian blastocyst develops into,
[Question ID = 578]
1. all embryonic structures [Option ID = 2311]
2. embryonic endoderm [Option ID = 2309]
3. chorio-allantoic placenta [Option ID = 2312]
4. yolk-sac placenta [Option ID = 2310]
Correct Answer :-
all embryonic structures [Option ID = 2311]
40)
41)
42)
43)
44)
45)
The isoform/s of actin present in muscle cells
[Question ID = 566]
1. beta-actin [Option ID = 2263]
2. beta-and gamma-actin [Option ID = 2264]
3. alpha-actin [Option ID = 2261]
4. alpha and beta-actin [Option ID = 2262]
Correct Answer :-
alpha-actin [Option ID = 2261]
The four postulates of the Chemiosmotic hypothesis accounted for:
[Question ID = 574]
1. ETC, F1-F0 ATPase, cardiolipin and pmf generators [Option ID = 2295]
2. ETC, F1-F0 ATPase, cardiolipin and anion exchangers [Option ID = 2296]
3. Cardiolipin [Option ID = 2294]
4. The four complexes of the electron transport chain (ETC). [Option ID = 2293]
Correct Answer :-
ETC, F1-F0 ATPase, cardiolipin and anion exchangers [Option ID = 2296]
Cilia and flagella contains a contractile protein called:
[Question ID = 575]
1. Myosin [Option ID = 2300]
2. Tubulin [Option ID = 2298]
3. Actin [Option ID = 2299]
4. Dyenin [Option ID = 2297]
Correct Answer :-
Dyenin [Option ID = 2297]
Insects such as Drosophila undergo three molts before undergoing metamorphosis. Molting is controlled by which of the following
hormone?
[Question ID = 532]
1. juvenile hormone [Option ID = 2126]
2. growth hormone [Option ID = 2128]
3. auxin [Option ID = 2127]
4. ecdysone [Option ID = 2125]
Correct Answer :-
ecdysone [Option ID = 2125]
Injection of anti-venom to a patient for snake bite is an example of
[Question ID = 562]
1. Artificially acquired active immunity [Option ID = 2246]
2. Artificially acquired passive immunity [Option ID = 2248]
3. Naturally acquired active immunity [Option ID = 2245]
4. Naturally acquired passive immunity [Option ID = 2247]
Correct Answer :-
Artificially acquired passive immunity [Option ID = 2248]
Steroid hormones are synthesized from
[Question ID = 558]
1. Glycogen [Option ID = 2232]
2. Tryptophan [Option ID = 2229]
3. Stearic acid [Option ID = 2231]
4. Cholesterol [Option ID = 2230]
46)
47)
48)
49)
50)
51)
Correct Answer :-
Cholesterol [Option ID = 2230]
When a heterozygous offspring is crossed to homozygous recessive parent, it is called as
[Question ID = 533]
1. Test cross [Option ID = 2129]
2. Reciprocal cross [Option ID = 2130]
3. Dihybrid cross [Option ID = 2132]
4. Monohybrid cross [Option ID = 2131]
Correct Answer :-
Test cross [Option ID = 2129]
Identify the statement that is NOT TRUE for Iron-sulphur clusters
[Question ID = 573]
1. These are prosthetic groups of succinate-coenzyme Q reductase complex. [Option ID = 2289]
2. These accept and release electrons one at a time [Option ID = 2291]
3. They contain Fe bonded to inorganic S atoms and S atoms on cysteine residues of proteins [Option ID = 2290]
4. They are always associated with cytochromes. [Option ID = 2292]
Correct Answer :-
They are always associated with cytochromes. [Option ID = 2292]
Of the early fish, which led to the extant fish of today?
[Question ID = 525]
1. cephalochordates [Option ID = 2099]
2. acanthodians [Option ID = 2100]
3. placoderms [Option ID = 2098]
4. heterostracans [Option ID = 2097]
Correct Answer :-
acanthodians [Option ID = 2100]
Water is a good solvent for inorganic salts because
[Question ID = 615]
1. hydrogen bond [Option ID = 2459]
2. dielectric constant [Option ID = 2457]
3. polarity [Option ID = 2458]
4. conductivity [Option ID = 2460]
Correct Answer :-
If the sequence of coding strand in a transcription unit is as follows: 5?-GAATTGCCAATTGCAGTC-3?, the sequence of mRNA
transcribed from the transcription unit would be, [Question ID = 604]
1. 3?-GAAUUGCCAAUUGCAGUC-5? [Option ID = 2416]
2. 5?-CUUAACGGUUAACGUCAG-3? [Option ID = 2414]
3. 5?-GAAUUGCCAAUUGCAGUC-3? [Option ID = 2413]
4. 5?-GACUGCAAUUGGCAAUUC-3? [Option ID = 2415]
Correct Answer :-
5?-GAAUUGCCAAUUGCAGUC-3? [Option ID = 2413]
In a Robertsonian translocation fusion occurs at the:
[Question ID = 529]
1. centromeres [Option ID = 2114]
2. histones [Option ID = 2115]
3. telomeres [Option ID = 2113]
52)
53)
54)
55)
56)
57)
4. ends of the long arms [Option ID = 2116]
Correct Answer :-
centromeres [Option ID = 2114]
Symporters are cotransporters that transport:
[Question ID = 570]
1. Cations and anions in the opposite direction. [Option ID = 2278]
2. Glucose against its concentration gradient. [Option ID = 2280]
3. Small molecules and gases in the same direction. [Option ID = 2277]
4. Na+ ions and glucose against the concentration gradient. [Option ID = 2279]
Correct Answer :-
Glucose against its concentration gradient. [Option ID = 2280]
Bidirectional movement of vesicles requires
[Question ID = 567]
1. Kinesin I [Option ID = 2265]
2. Association of (+) and (-) end-directed motors [Option ID = 2268]
3. A flexible neck region on the motor protein [Option ID = 2267]
4. Microtubules and microfilaments [Option ID = 2266]
Correct Answer :-
Association of (+) and (-) end-directed motors [Option ID = 2268]
Pharyngeal gill slits
[Question ID = 521]
1. are not found in protochordates, but are present in vertebrates, at least during the embryonic life [Option ID = 2084]
2. are found in higher inverterates and vertebrates [Option ID = 2083]
3. are found in fishes, crabs, snails, aquatic insects [Option ID = 2082]
4. are unique chordate characteristic [Option ID = 2081]
Correct Answer :-
are unique chordate characteristic [Option ID = 2081]
Three pg of a hypothetical protein-X is present in a cell. How many molecules of protein-X would be present in a cell, if the molecular
weight of the protein is 30000? (Given, Avogaro?s number is 6 x 10
23
)
[Question ID = 610]
1. 6 x 10
15
[Option ID = 2439]
2. 6 x 10
7
[Option ID = 2438]
3. 6 x 10
23
[Option ID = 2440]
4. 6 x 10
6
[Option ID = 2437]
Correct Answer :-
6 x 10
7
[Option ID = 2438]
Ciliated pseudostratified columnar epithelia are found in
[Question ID = 537]
1. membranous part of male vas deferens [Option ID = 2147]
2. linings of the trachea & upper respiratory tract [Option ID = 2146]
3. lining of the trachea [Option ID = 2145]
4. Vagina [Option ID = 2148]
Correct Answer :-
linings of the trachea & upper respiratory tract [Option ID = 2146]
In vertebrates, which one of the following structures is believed to have been transformed into thyroid gland? [Question ID = 592]
58)
59)
60)
61)
62)
63)
1. Pygostyle [Option ID = 2365]
2. Analstyle [Option ID = 2367]
3. Endostyle [Option ID = 2368]
4. Urostyle [Option ID = 2366]
Correct Answer :-
Endostyle [Option ID = 2368]
DNA double helix is stabilized by: [Question ID = 602]
1. Hydrophobic interactions only [Option ID = 2408]
2. H-bonds only [Option ID = 2405]
3. H-bonds and base stacking interactions [Option ID = 2406]
4. Electrostatic interactions [Option ID = 2407]
Correct Answer :-
H-bonds and base stacking interactions [Option ID = 2406]
Three forms of Daphnia are found in varying seasons. This phenomenon is called: [Question ID = 593]
1. Poly morphism [Option ID = 2369]
2. Seasonal peroidicity [Option ID = 2371]
3. Adaptation [Option ID = 2372]
4. Cyclomorphism [Option ID = 2370]
Correct Answer :-
Cyclomorphism [Option ID = 2370]
A gene showing co-dominance
[Question ID = 526]
1. Has alleles tightly linked on the same chromosome [Option ID = 2103]
2. Has alleles expressed at the same time in development [Option ID = 2104]
3. Has one allele dominant to the other [Option ID = 2101]
4. Has both alleles independently expressed in heterozygote [Option ID = 2102]
Correct Answer :-
Has both alleles independently expressed in heterozygote [Option ID = 2102]
If the atrioventricular node could be surgically removed from the heart without disrupting signal transmission to bundle of His,
then?
[Question ID = 587]
1. atria & ventricle would contract almost simultaneously [Option ID = 2348]
2. the heart rate would be decreased. [Option ID = 2345]
3. only artia would contract. [Option ID = 2346]
4. only ventricle would contract. [Option ID = 2347]
Correct Answer :-
atria & ventricle would contract almost simultaneously [Option ID = 2348]
A double stranded DNA has 30 mole percent of cytosine. What would be the mole percent of adenine in it?
[Question ID = 605]
1. 40 [Option ID = 2419]
2. 20 [Option ID = 2417]
3. 60 [Option ID = 2420]
4. 30 [Option ID = 2418]
Correct Answer :-
20 [Option ID = 2417]
A protein having both structural and enzymatic properties is
[Question ID = 535]
64)
65)
66)
67)
68)
69)
1. Histone [Option ID = 2140]
2. Trypsin [Option ID = 2138]
3. Myosin [Option ID = 2139]
4. Collagen [Option ID = 2137]
Correct Answer :-
Myosin [Option ID = 2139]
Bilateral symmetry in certain group of Phylum Mollusca is lost due to
[Question ID = 595]
1. reversion and rotation [Option ID = 2379]
2. expansion and torsion [Option ID = 2380]
3. torsion [Option ID = 2378]
4. rotation [Option ID = 2377]
Correct Answer :-
torsion [Option ID = 2378]
Bilaterally symmetrical, acoelomate organisms are:
[Question ID = 577]
1. platyhelminthes [Option ID = 2306]
2. sponges [Option ID = 2305]
3. acinadia [Option ID = 2308]
4. nemathelminthes [Option ID = 2307]
Correct Answer :-
platyhelminthes [Option ID = 2306]
Honey bee society is [Question ID = 549]
1. Eusocial [Option ID = 2196]
2. Subsocial [Option ID = 2195]
3. Communal [Option ID = 2193]
4. Parasocial [Option ID = 2194]
Correct Answer :-
Eusocial [Option ID = 2196]
DNA finger-printing employs
[Question ID = 588]
1. pseudo-genes as probes. [Option ID = 2352]
2. unique and house-keeping genes as probes [Option ID = 2349]
3. variable number tandem repeats as probes [Option ID = 2351]
4. specific metabolic genes as probes [Option ID = 2350]
Correct Answer :-
variable number tandem repeats as probes [Option ID = 2351]
BLAST program is used in
[Question ID = 564]
1. DNA sequencing [Option ID = 2253]
2. DNA bar coding [Option ID = 2255]
3. Amino Acid sequencing [Option ID = 2254]
4. Bioinformatics [Option ID = 2256]
Correct Answer :-
Bioinformatics [Option ID = 2256]
Hemophilia is an example of a trait that is carried as a ____________________.
70)
71)
72)
73)
74)
[Question ID = 543]
1. Autosomal dominant [Option ID = 2169]
2. Autosomal recessive [Option ID = 2170]
3. Sex-linked dominant [Option ID = 2171]
4. Sex linked recessive [Option ID = 2172]
Correct Answer :-
Sex linked recessive [Option ID = 2172]
Schizocoelic phyla are
[Question ID = 520]
1. Annelida, Arthropoda, and Mollusca [Option ID = 2079]
2. Arthropoda, Mollusca and Echinodermata [Option ID = 2080]
3. Platyhelminthes, Aschelminthes and Annelida [Option ID = 2078]
4. Protozoa, Porifera, Cnidarians, and Platyhelminthes [Option ID = 2077]
Correct Answer :-
Annelida, Arthropoda, and Mollusca [Option ID = 2079]
In terrestrial vertebrates, which of the following structures did not arise from the pharyngeal pouches?
[Question ID = 522]
1. intervertebral discs [Option ID = 2087]
2. Eustachian tube [Option ID = 2085]
3. parathyroid gland [Option ID = 2088]
4. middle ear [Option ID = 2086]
Correct Answer :-
intervertebral discs [Option ID = 2087]
Species inhabiting in different geographical regions are known as
[Question ID = 545]
1. allopatric [Option ID = 2177]
2. biospecies [Option ID = 2180]
3. sibling species [Option ID = 2178]
4. sympatric [Option ID = 2179]
Correct Answer :-
allopatric [Option ID = 2177]
Frog oocytes do not swell in hypotonic solutions. The most plausible explanation for this is the absence of:
[Question ID = 571]
1. Aquaporins [Option ID = 2282]
2. K+ channels [Option ID = 2284]
3. Na+ channels [Option ID = 2283]
4. Na+ K+ ATPase [Option ID = 2281]
Correct Answer :-
Aquaporins [Option ID = 2282]
Nucleosome core is a structural unit of chromomatin
[Question ID = 616]
1. consisting of 8 histones molecules and a specific length of DNA [Option ID = 2463]
2. consisting of 8 histones molecules and a specific sequence of DNA [Option ID = 2462]
3. consisting of 4 histones molecules and a specific length of DNA [Option ID = 2461]
4. consisting of 4 histones molecules and a specific sequence of DNA [Option ID = 2464]
Correct Answer :-
75)
76)
77)
78)
79)
consisting of 8 histones molecules and a specific length of DNA [Option ID = 2463]
Melting temperature (Tm) of double stranded DNA increases with
[Question ID = 554]
1. Increases by modified bases [Option ID = 2216]
2. Increase in number of adenine/thymine bases [Option ID = 2214]
3. Increase number of guanine/cytosine bases [Option ID = 2213]
4. Bases have no effect on Tm of DNA [Option ID = 2215]
Correct Answer :-
Increase number of guanine/cytosine bases [Option ID = 2213]
Unfolded or misfolded proteins are degraded in:
[Question ID = 560]
1. Golgi [Option ID = 2239]
2. Endoplasmic reticulum [Option ID = 2240]
3. Mitochondria [Option ID = 2237]
4. Proteasomes [Option ID = 2238]
Correct Answer :-
Proteasomes [Option ID = 2238]
Which of the following communicable diseases is NOT transmitted by Aedes? [Question ID = 539]
1. Dengue haemorrhagic fever [Option ID = 2153]
2. Yellow fever [Option ID = 2156]
3. Chikungunia [Option ID = 2155]
4. Sleeping sickness [Option ID = 2154]
Correct Answer :-
Sleeping sickness [Option ID = 2154]
Which of the following is semiautonomous organelle? [Question ID = 541]
1. Golgi complex [Option ID = 2163]
2. Mitochondria [Option ID = 2162]
3. Nucleus [Option ID = 2161]
4. Ribosomes [Option ID = 2164]
Correct Answer :-
Mitochondria [Option ID = 2162]
[Question ID = 612]
1. [Option ID = 2448]
2. [Option ID = 2446]
3. [Option ID = 2445]
80)
81)
4. [Option ID = 2447]
Correct Answer :-
[Option ID = 2445]
[Question ID = 599]
1. [Option ID = 2396]
2. [Option ID = 2394]
3. [Option ID = 2393]
4. [Option ID = 2395]
Correct Answer :-
[Option ID = 2395]
[Question ID = 576]
1. [Option ID = 2304]
2. [Option ID = 2301]
3. [Option ID = 2302]
4. [Option ID = 2303]
82)
83)
84)
85)
86)
87)
Correct Answer :-
[Option ID = 2304]
[Question ID = 597]
1. 8.25 [Option ID = 2385]
2. 6.98 [Option ID = 2388]
3. 7.05 [Option ID = 2386]
4. 6.58 [Option ID = 2387]
Correct Answer :-
6.98 [Option ID = 2388]
If a colour blind female marries a normal male, their children will be [Question ID = 547]
1. normal sons and normal daughters [Option ID = 2188]
2. normal sons and carrier daughters [Option ID = 2187]
3. colour blind sons and colour blind daughters [Option ID = 2185]
4. colour blind sons and carrier daughters [Option ID = 2186]
Correct Answer :-
colour blind sons and carrier daughters [Option ID = 2186]
Y-shaped chaveron bone is present in [Question ID = 550]
1. thoracic vertebrae of mammal [Option ID = 2197]
2. caudal vertebrae of reptile [Option ID = 2199]
3. cervical vertebrae of bird [Option ID = 2198]
4. lumbar vertebrae of amphibian [Option ID = 2200]
Correct Answer :-
caudal vertebrae of reptile [Option ID = 2199]
The heart is not ventral in position in [Question ID = 519]
1. Fish [Option ID = 2074]
2. Frog [Option ID = 2073]
3. Lamprey [Option ID = 2075]
4. Crabs [Option ID = 2076]
Correct Answer :-
Crabs [Option ID = 2076]
What would be the phenotype of E. coli for lac-operon, if the genotype is i+ o- z+ y+ a+?
[Question ID = 603]
1. It would be repressed but inducible by IPTG. [Option ID = 2409]
2. It would be repressed and not induced by IPTG. [Option ID = 2411]
3. It would show constitutive expression of structural genes. [Option ID = 2410]
4. It would show constitutive expression of structural genes whose expression would further be enhanced by IPTG. [Option ID = 2412]
Correct Answer :-
It would show constitutive expression of structural genes. [Option ID = 2410]
Non-disjunction means:
[Question ID = 594]
1. one chromosome being lost [Option ID = 2376]
2. loss of a part of chromosome [Option ID = 2373]
3. duplication of a segment of a chromosome [Option ID = 2374]
4. failure of chromosome pairs to separate during anaphase [Option ID = 2375]
88)
89)
90)
91)
92)
93)
Correct Answer :-
failure of chromosome pairs to separate during anaphase [Option ID = 2375]
Marsupial mammals moved from South America to Australia via [Question ID = 540]
1. Antarctica [Option ID = 2157]
2. Madagascar [Option ID = 2160]
3. the Galapagos Archipelago [Option ID = 2159]
4. Africa [Option ID = 2158]
Correct Answer :-
Antarctica [Option ID = 2157]
Gap junctions are not essential for:
[Question ID = 572]
1. Skeletal muscle contraction [Option ID = 2288]
2. Metabolic coupling [Option ID = 2286]
3. Peristalsis [Option ID = 2287]
4. Transfer of second messengers [Option ID = 2285]
Correct Answer :-
Skeletal muscle contraction [Option ID = 2288]
Bilateral symmetry is seen in the body organization of [Question ID = 517]
1. annelids, arthropods and vertebrates [Option ID = 2068]
2. Vertebrates only [Option ID = 2066]
3. Vertebrates, annelids, arthropods, and cnidarians [Option ID = 2067]
4. Only chordates [Option ID = 2065]
Correct Answer :-
annelids, arthropods and vertebrates [Option ID = 2068]
The absorbance of UV light (280nm) by a protein is largely due to the presence of amino acids with
[Question ID = 596]
1. Acidic R group [Option ID = 2382]
2. Aromatic R group [Option ID = 2383]
3. Basic R group [Option ID = 2384]
4. Aliphatic R group [Option ID = 2381]
Correct Answer :-
Aromatic R group [Option ID = 2383]
The name of the process by which oil glands in mammalian skins secrete oils is:
[Question ID = 538]
1. holocrine secretion [Option ID = 2151]
2. osmosis [Option ID = 2152]
3. apocrine secretion [Option ID = 2150]
4. active transport [Option ID = 2149]
Correct Answer :-
holocrine secretion [Option ID = 2151]
The transition from water to land in the evolution of land vertebrates occurred during:
[Question ID = 585]
1. Cambrian [Option ID = 2337]
2. Devonian [Option ID = 2340]
3. Jurassic [Option ID = 2338]
4. Carboniferous [Option ID = 2339]
FirstRanker.com - FirstRanker's Choice
1)
2)
3)
4)
5)
DU MSc Zoology
Topic:- DU_J18_MSC_ZOO
Which of the following is NOT a characteristic of lakes suffering from organic pollution?
[Question ID = 582]
1. High microbial concentration [Option ID = 2325]
2. High biochemical oxygen demand [Option ID = 2327]
3. Low phosphate levels [Option ID = 2328]
4. Frequent algal blooms [Option ID = 2326]
Correct Answer :-
Low phosphate levels [Option ID = 2328]
Which of the following was probably absent at the time of origin of life ?
[Question ID = 546]
1. Oxygen [Option ID = 2182]
2. Hydrogen [Option ID = 2181]
3. Methane [Option ID = 2183]
4. Carbon dioxide [Option ID = 2184]
Correct Answer :-
Oxygen [Option ID = 2182]
Which of the following genotypes causes Klinefelter syndrome?
[Question ID = 530]
1. XYY [Option ID = 2120]
2. XO [Option ID = 2117]
3. XXY [Option ID = 2118]
4. XX [Option ID = 2119]
Correct Answer :-
XXY [Option ID = 2118]
Which of the following is wrong match for enzyme classification?
[Question ID = 601]
1. EC 2 ? Trasnferases [Option ID = 2402]
2. EC 3- Hydrolases [Option ID = 2403]
3. EC 1 - Oxidoreductases [Option ID = 2401]
4. EC 4- Ligases [Option ID = 2404]
Correct Answer :-
EC 4- Ligases [Option ID = 2404]
Which of the following is not a possible explanation for the rapid rate of evolution of beak shape in Darwin?s finches?
[Question ID = 614]
1. Strong selection pressure [Option ID = 2455]
2. Small population size [Option ID = 2456]
3. High mutation rate [Option ID = 2453]
4. High emigrations and immigration rate [Option ID = 2454]
Correct Answer :-
High mutation rate [Option ID = 2453]
6)
7)
8)
9)
10)
11)
Which of the following animals is primarily an ectotherm?
[Question ID = 542]
1. Hawk [Option ID = 2165]
2. Lizard [Option ID = 2166]
3. Elephant [Option ID = 2168]
4. Shrew [Option ID = 2167]
Correct Answer :-
Lizard [Option ID = 2166]
Which of the following technique was used by Messelon and Stahl to separate DNA labeled with 15
N
from 14
N
?
[Question ID = 609]
1. Ion-exchange chromatography [Option ID = 2436]
2. Molecular-sieve filtration chromatography [Option ID = 2435]
3. Agarose Gel electrophoresis [Option ID = 2434]
4. CsCl density gradient centrifugation [Option ID = 2433]
Correct Answer :-
CsCl density gradient centrifugation [Option ID = 2433]
Which of the following molecule is most abundant in living system?
[Question ID = 608]
1. Water [Option ID = 2432]
2. Cellulose [Option ID = 2430]
3. Protein [Option ID = 2429]
4. Starch [Option ID = 2431]
Correct Answer :-
Water [Option ID = 2432]
Which system is active under stress?
[Question ID = 536]
1. Sympathetic nervous system [Option ID = 2142]
2. Somatic nervous system [Option ID = 2143]
3. Parasympathetic nervous system [Option ID = 2141]
4. Complete autonomic nervous system [Option ID = 2144]
Correct Answer :-
Sympathetic nervous system [Option ID = 2142]
Which is the first National park established in India:
[Question ID = 583]
1. Jim Corbet National Park [Option ID = 2329]
2. Periyar National Park [Option ID = 2332]
3. Kanziranga National Park [Option ID = 2330]
4. Kanha National Park [Option ID = 2331]
Correct Answer :-
Jim Corbet National Park [Option ID = 2329]
Doubling time for E. coli is 20 min. If the initial number of bacterium in a culture is 100, what would be number of bacterium after 60
min. [Question ID = 606]
1. 300 [Option ID = 2422]
2. 400 [Option ID = 2423]
3. 100 [Option ID = 2421]
4. 800 [Option ID = 2424]
12)
13)
14)
15)
16)
17)
Correct Answer :-
800 [Option ID = 2424]
X-chromosome inactivation
[Question ID = 527]
1. Is the cause of the y chromosome being genetically inactive [Option ID = 2106]
2. Takes place in humans so that the same X chromosome is inactive in all the cells of a female [Option ID = 2107]
3. Normally takes place in males but not in females [Option ID = 2105]
4. Results in genetically turning off one of the two X chromosome in female mammals [Option ID = 2108]
Correct Answer :-
Results in genetically turning off one of the two X chromosome in female mammals [Option ID = 2108]
In ecological succession from pioneer to climax community, the biomass shall:
[Question ID = 584]
1. Increase and then decrease [Option ID = 2334]
2. Increase continuously [Option ID = 2336]
3. Decrease [Option ID = 2333]
4. No relation [Option ID = 2335]
Correct Answer :-
Increase continuously [Option ID = 2336]
Import of glucose by the liver cell:
[Question ID = 569]
1. Is dependent on hydrolysis of ATP [Option ID = 2273]
2. Is facilitated by GLUT2 [Option ID = 2276]
3. Occurs throughout the phospholipid bilayer [Option ID = 2275]
4. Requires expression of GLUT1 on the plasma membrane [Option ID = 2274]
Correct Answer :-
Is facilitated by GLUT2 [Option ID = 2276]
The origin of the jaw in the gnathostomes is the
[Question ID = 524]
1. hyoid [Option ID = 2096]
2. gill arch [Option ID = 2093]
3. notochord [Option ID = 2095]
4. bones supporting the cranium [Option ID = 2094]
Correct Answer :-
gill arch [Option ID = 2093]
The dynamics of which cytoskeletal element changes in a moving amoeba?
[Question ID = 568]
1. Intermediate filaments [Option ID = 2271]
2. MreB [Option ID = 2272]
3. Microtubules [Option ID = 2269]
4. Microfilaments [Option ID = 2270]
Correct Answer :-
Microfilaments [Option ID = 2270]
Repeat core sequences consisting of 2, 3, or 4 base pairs are known as what?
[Question ID = 531]
18)
19)
20)
21)
22)
1. Single nucleotide polymorphisms (SNPs) [Option ID = 2121]
2. Minisatellites [Option ID = 2123]
3. Telomeres [Option ID = 2124]
4. Microsatellites [Option ID = 2122]
Correct Answer :-
Microsatellites [Option ID = 2122]
A haltere is a
[Question ID = 551]
1. Device used by a male insect to attract female for mating [Option ID = 2204]
2. balancing organ of housefly [Option ID = 2203]
3. sense organ of butterfly [Option ID = 2201]
4. modified forewing of beetle [Option ID = 2202]
Correct Answer :-
balancing organ of housefly [Option ID = 2203]
Linolenic (C18: 9,12,15) is an essential fatty acid for human because:
[Question ID = 555]
1. Lenolenic acid is available in fruits [Option ID = 2217]
2. Lenolenic acid gives much energy that palmitic acid [Option ID = 2219]
3. It is unsaturated fatty acid [Option ID = 2220]
4. Human cannot introduce double bond beyond 9-10 carbon of fatty acids [Option ID = 2218]
Correct Answer :-
Human cannot introduce double bond beyond 9-10 carbon of fatty acids [Option ID = 2218]
Passive immunity is obtained by:
[Question ID = 589]
1. Injecting the serum of another animal/individual containing antitoxin [Option ID = 2354]
2. Our own body cells preparing antibodies [Option ID = 2353]
3. Blood transfusion and blood clotting [Option ID = 2356]
4. Drinking medicinal concoctions [Option ID = 2355]
Correct Answer :-
Injecting the serum of another animal/individual containing antitoxin [Option ID = 2354]
2-amino-3 hydroxy propionic acid is the chemical name for which of the following amino acid:
[Question ID = 580]
1. serine [Option ID = 2320]
2. valine [Option ID = 2319]
3. glycine [Option ID = 2317]
4. alanine [Option ID = 2318]
Correct Answer :-
serine [Option ID = 2320]
Low pH of the lysosomal compartment is maintained by
[Question ID = 613]
1. Glycolysis [Option ID = 2452]
2. Electron transport chain [Option ID = 2449]
3. Proton ATPase at the membrane [Option ID = 2450]
4. Luminal acid production [Option ID = 2451]
Correct Answer :-
Proton ATPase at the membrane [Option ID = 2450]
23)
24)
25)
26)
27)
28)
Kidney of the vertebrate embryo develops from:
[Question ID = 591]
1. Mesoderm [Option ID = 2363]
2. Archenteron [Option ID = 2364]
3. Endoderm [Option ID = 2362]
4. Ectoderm [Option ID = 2361]
Correct Answer :-
Mesoderm [Option ID = 2363]
DNA is genetic material in
[Question ID = 563]
1. Only eukaryotes [Option ID = 2251]
2. Only Prokaryotes and eukaryotes [Option ID = 2250]
3. All viruses, prokaryotes, eukaryotes [Option ID = 2249]
4. Some viruses, all prokaryotes and eukaryotes [Option ID = 2252]
Correct Answer :-
Some viruses, all prokaryotes and eukaryotes [Option ID = 2252]
Which of the following statement is NOT TRUE for a competitive inhibitor in an enzyme catalysed reaction?
[Question ID = 600]
1. Their inhibition can be reversed by increasing the substrate concentration [Option ID = 2400]
2. They compete with substrate for binding to the active site. [Option ID = 2398]
3. They are structural analogues of the substrate. [Option ID = 2397]
4. They increase the Km, and decrease the Vmax. [Option ID = 2399]
Correct Answer :-
They increase the Km, and decrease the Vmax. [Option ID = 2399]
Knee joint is a
[Question ID = 548]
1. fibrous joint [Option ID = 2192]
2. cartilaginous joint [Option ID = 2191]
3. collagenous joint [Option ID = 2189]
4. synovial joint [Option ID = 2190]
Correct Answer :-
synovial joint [Option ID = 2190]
The heaviest organelle in cell is:
[Question ID = 556]
1. Lysosomes [Option ID = 2223]
2. Ribosomes [Option ID = 2224]
3. Nucleus [Option ID = 2222]
4. Mitochondria [Option ID = 2221]
Correct Answer :-
Nucleus [Option ID = 2222]
Wallace?s line is present in between
[Question ID = 544]
1. Oriental and Australian regions [Option ID = 2173]
2. Palaearctic and Ethiopian regions [Option ID = 2176]
3. Neotropical and Nearctic regions [Option ID = 2175]
4. Ethiopian and Oriental regions [Option ID = 2174]
29)
30)
31)
32)
33)
34)
Correct Answer :-
Oriental and Australian regions [Option ID = 2173]
In bivalves, which structure secretes pearl?
[Question ID = 598]
1. Nacreous gland. [Option ID = 2392]
2. Nacreous layer [Option ID = 2391]
3. Prismatic layer [Option ID = 2390]
4. Periostracum layer [Option ID = 2389]
Correct Answer :-
Nacreous layer [Option ID = 2391]
Ampicillin inhibits:
[Question ID = 559]
1. Cell wall synthesis in bacterial cells [Option ID = 2236]
2. RNA synthesis in Bacterial cells [Option ID = 2234]
3. DNA synthesis in bacterial cells [Option ID = 2233]
4. Protein synthesis in mammalian cell [Option ID = 2235]
Correct Answer :-
Cell wall synthesis in bacterial cells [Option ID = 2236]
Hiccups can be best described as ___________.
[Question ID = 534]
1. sign of somebody remembering you [Option ID = 2136]
2. vibration of the soft palate during breathing while sleeping [Option ID = 2135]
3. jerky incomplete inspiration [Option ID = 2134]
4. forceful sudden expiration [Option ID = 2133]
Correct Answer :-
jerky incomplete inspiration [Option ID = 2134]
At Isoelectric pH the charge on protein is:
[Question ID = 553]
1. Positive charge on protein [Option ID = 2210]
2. Negative charge on protein [Option ID = 2211]
3. No charge on protein [Option ID = 2209]
4. Net charge on protein is zero [Option ID = 2212]
Correct Answer :-
Net charge on protein is zero [Option ID = 2212]
Lac is a material which is
[Question ID = 552]
1. hardened fecal matter of lac insect [Option ID = 2205]
2. protective secretion deposited by female lac insect [Option ID = 2206]
3. protective covering secreted by larva [Option ID = 2207]
4. resin secreted by the plant [Option ID = 2208]
Correct Answer :-
protective secretion deposited by female lac insect [Option ID = 2206]
Hardy-Weinberg?s law gives the concept of
[Question ID = 586]
35)
36)
37)
38)
39)
1. natural selection. [Option ID = 2344]
2. genetic drift [Option ID = 2341]
3. genetic equilibrium [Option ID = 2343]
4. mutation [Option ID = 2342]
Correct Answer :-
genetic equilibrium [Option ID = 2343]
The vertical migration of plankton is an instance of
[Question ID = 579]
1. Circadian rythmes [Option ID = 2313]
2. Circannual rythmes [Option ID = 2314]
3. photopriodism [Option ID = 2315]
4. photokinesis. [Option ID = 2316]
Correct Answer :-
Circadian rythmes [Option ID = 2313]
Treadmilling of actin filaments in the steady state occurs at G-actin concentration
[Question ID = 565]
1. Below the Cc of the (-) end [Option ID = 2257]
2. Above the Cc of the (-) end but below the Cc of the (+) end [Option ID = 2259]
3. Above the Cc of the (+) end but below the Cc of the (-) end [Option ID = 2260]
4. Above the Cc of the (+) end [Option ID = 2258]
Correct Answer :-
Above the Cc of the (+) end but below the Cc of the (-) end [Option ID = 2260]
Exon skipping is associated with:
[Question ID = 528]
1. regulatory mutations [Option ID = 2110]
2. RNA processing mutations [Option ID = 2111]
3. nonsense mutations [Option ID = 2109]
4. silent mutations [Option ID = 2112]
Correct Answer :-
RNA processing mutations [Option ID = 2111]
Bile is produced in our body which
[Question ID = 557]
1. Act as a surfactant to emulsify lipids in intestine. [Option ID = 2226]
2. It has no role associated with our body [Option ID = 2228]
3. Helps in digestion of starch in intestinbe [Option ID = 2227]
4. Helps in controlling blood pressure [Option ID = 2225]
Correct Answer :-
Act as a surfactant to emulsify lipids in intestine. [Option ID = 2226]
The inner cell mass of mammalian blastocyst develops into,
[Question ID = 578]
1. all embryonic structures [Option ID = 2311]
2. embryonic endoderm [Option ID = 2309]
3. chorio-allantoic placenta [Option ID = 2312]
4. yolk-sac placenta [Option ID = 2310]
Correct Answer :-
all embryonic structures [Option ID = 2311]
40)
41)
42)
43)
44)
45)
The isoform/s of actin present in muscle cells
[Question ID = 566]
1. beta-actin [Option ID = 2263]
2. beta-and gamma-actin [Option ID = 2264]
3. alpha-actin [Option ID = 2261]
4. alpha and beta-actin [Option ID = 2262]
Correct Answer :-
alpha-actin [Option ID = 2261]
The four postulates of the Chemiosmotic hypothesis accounted for:
[Question ID = 574]
1. ETC, F1-F0 ATPase, cardiolipin and pmf generators [Option ID = 2295]
2. ETC, F1-F0 ATPase, cardiolipin and anion exchangers [Option ID = 2296]
3. Cardiolipin [Option ID = 2294]
4. The four complexes of the electron transport chain (ETC). [Option ID = 2293]
Correct Answer :-
ETC, F1-F0 ATPase, cardiolipin and anion exchangers [Option ID = 2296]
Cilia and flagella contains a contractile protein called:
[Question ID = 575]
1. Myosin [Option ID = 2300]
2. Tubulin [Option ID = 2298]
3. Actin [Option ID = 2299]
4. Dyenin [Option ID = 2297]
Correct Answer :-
Dyenin [Option ID = 2297]
Insects such as Drosophila undergo three molts before undergoing metamorphosis. Molting is controlled by which of the following
hormone?
[Question ID = 532]
1. juvenile hormone [Option ID = 2126]
2. growth hormone [Option ID = 2128]
3. auxin [Option ID = 2127]
4. ecdysone [Option ID = 2125]
Correct Answer :-
ecdysone [Option ID = 2125]
Injection of anti-venom to a patient for snake bite is an example of
[Question ID = 562]
1. Artificially acquired active immunity [Option ID = 2246]
2. Artificially acquired passive immunity [Option ID = 2248]
3. Naturally acquired active immunity [Option ID = 2245]
4. Naturally acquired passive immunity [Option ID = 2247]
Correct Answer :-
Artificially acquired passive immunity [Option ID = 2248]
Steroid hormones are synthesized from
[Question ID = 558]
1. Glycogen [Option ID = 2232]
2. Tryptophan [Option ID = 2229]
3. Stearic acid [Option ID = 2231]
4. Cholesterol [Option ID = 2230]
46)
47)
48)
49)
50)
51)
Correct Answer :-
Cholesterol [Option ID = 2230]
When a heterozygous offspring is crossed to homozygous recessive parent, it is called as
[Question ID = 533]
1. Test cross [Option ID = 2129]
2. Reciprocal cross [Option ID = 2130]
3. Dihybrid cross [Option ID = 2132]
4. Monohybrid cross [Option ID = 2131]
Correct Answer :-
Test cross [Option ID = 2129]
Identify the statement that is NOT TRUE for Iron-sulphur clusters
[Question ID = 573]
1. These are prosthetic groups of succinate-coenzyme Q reductase complex. [Option ID = 2289]
2. These accept and release electrons one at a time [Option ID = 2291]
3. They contain Fe bonded to inorganic S atoms and S atoms on cysteine residues of proteins [Option ID = 2290]
4. They are always associated with cytochromes. [Option ID = 2292]
Correct Answer :-
They are always associated with cytochromes. [Option ID = 2292]
Of the early fish, which led to the extant fish of today?
[Question ID = 525]
1. cephalochordates [Option ID = 2099]
2. acanthodians [Option ID = 2100]
3. placoderms [Option ID = 2098]
4. heterostracans [Option ID = 2097]
Correct Answer :-
acanthodians [Option ID = 2100]
Water is a good solvent for inorganic salts because
[Question ID = 615]
1. hydrogen bond [Option ID = 2459]
2. dielectric constant [Option ID = 2457]
3. polarity [Option ID = 2458]
4. conductivity [Option ID = 2460]
Correct Answer :-
If the sequence of coding strand in a transcription unit is as follows: 5?-GAATTGCCAATTGCAGTC-3?, the sequence of mRNA
transcribed from the transcription unit would be, [Question ID = 604]
1. 3?-GAAUUGCCAAUUGCAGUC-5? [Option ID = 2416]
2. 5?-CUUAACGGUUAACGUCAG-3? [Option ID = 2414]
3. 5?-GAAUUGCCAAUUGCAGUC-3? [Option ID = 2413]
4. 5?-GACUGCAAUUGGCAAUUC-3? [Option ID = 2415]
Correct Answer :-
5?-GAAUUGCCAAUUGCAGUC-3? [Option ID = 2413]
In a Robertsonian translocation fusion occurs at the:
[Question ID = 529]
1. centromeres [Option ID = 2114]
2. histones [Option ID = 2115]
3. telomeres [Option ID = 2113]
52)
53)
54)
55)
56)
57)
4. ends of the long arms [Option ID = 2116]
Correct Answer :-
centromeres [Option ID = 2114]
Symporters are cotransporters that transport:
[Question ID = 570]
1. Cations and anions in the opposite direction. [Option ID = 2278]
2. Glucose against its concentration gradient. [Option ID = 2280]
3. Small molecules and gases in the same direction. [Option ID = 2277]
4. Na+ ions and glucose against the concentration gradient. [Option ID = 2279]
Correct Answer :-
Glucose against its concentration gradient. [Option ID = 2280]
Bidirectional movement of vesicles requires
[Question ID = 567]
1. Kinesin I [Option ID = 2265]
2. Association of (+) and (-) end-directed motors [Option ID = 2268]
3. A flexible neck region on the motor protein [Option ID = 2267]
4. Microtubules and microfilaments [Option ID = 2266]
Correct Answer :-
Association of (+) and (-) end-directed motors [Option ID = 2268]
Pharyngeal gill slits
[Question ID = 521]
1. are not found in protochordates, but are present in vertebrates, at least during the embryonic life [Option ID = 2084]
2. are found in higher inverterates and vertebrates [Option ID = 2083]
3. are found in fishes, crabs, snails, aquatic insects [Option ID = 2082]
4. are unique chordate characteristic [Option ID = 2081]
Correct Answer :-
are unique chordate characteristic [Option ID = 2081]
Three pg of a hypothetical protein-X is present in a cell. How many molecules of protein-X would be present in a cell, if the molecular
weight of the protein is 30000? (Given, Avogaro?s number is 6 x 10
23
)
[Question ID = 610]
1. 6 x 10
15
[Option ID = 2439]
2. 6 x 10
7
[Option ID = 2438]
3. 6 x 10
23
[Option ID = 2440]
4. 6 x 10
6
[Option ID = 2437]
Correct Answer :-
6 x 10
7
[Option ID = 2438]
Ciliated pseudostratified columnar epithelia are found in
[Question ID = 537]
1. membranous part of male vas deferens [Option ID = 2147]
2. linings of the trachea & upper respiratory tract [Option ID = 2146]
3. lining of the trachea [Option ID = 2145]
4. Vagina [Option ID = 2148]
Correct Answer :-
linings of the trachea & upper respiratory tract [Option ID = 2146]
In vertebrates, which one of the following structures is believed to have been transformed into thyroid gland? [Question ID = 592]
58)
59)
60)
61)
62)
63)
1. Pygostyle [Option ID = 2365]
2. Analstyle [Option ID = 2367]
3. Endostyle [Option ID = 2368]
4. Urostyle [Option ID = 2366]
Correct Answer :-
Endostyle [Option ID = 2368]
DNA double helix is stabilized by: [Question ID = 602]
1. Hydrophobic interactions only [Option ID = 2408]
2. H-bonds only [Option ID = 2405]
3. H-bonds and base stacking interactions [Option ID = 2406]
4. Electrostatic interactions [Option ID = 2407]
Correct Answer :-
H-bonds and base stacking interactions [Option ID = 2406]
Three forms of Daphnia are found in varying seasons. This phenomenon is called: [Question ID = 593]
1. Poly morphism [Option ID = 2369]
2. Seasonal peroidicity [Option ID = 2371]
3. Adaptation [Option ID = 2372]
4. Cyclomorphism [Option ID = 2370]
Correct Answer :-
Cyclomorphism [Option ID = 2370]
A gene showing co-dominance
[Question ID = 526]
1. Has alleles tightly linked on the same chromosome [Option ID = 2103]
2. Has alleles expressed at the same time in development [Option ID = 2104]
3. Has one allele dominant to the other [Option ID = 2101]
4. Has both alleles independently expressed in heterozygote [Option ID = 2102]
Correct Answer :-
Has both alleles independently expressed in heterozygote [Option ID = 2102]
If the atrioventricular node could be surgically removed from the heart without disrupting signal transmission to bundle of His,
then?
[Question ID = 587]
1. atria & ventricle would contract almost simultaneously [Option ID = 2348]
2. the heart rate would be decreased. [Option ID = 2345]
3. only artia would contract. [Option ID = 2346]
4. only ventricle would contract. [Option ID = 2347]
Correct Answer :-
atria & ventricle would contract almost simultaneously [Option ID = 2348]
A double stranded DNA has 30 mole percent of cytosine. What would be the mole percent of adenine in it?
[Question ID = 605]
1. 40 [Option ID = 2419]
2. 20 [Option ID = 2417]
3. 60 [Option ID = 2420]
4. 30 [Option ID = 2418]
Correct Answer :-
20 [Option ID = 2417]
A protein having both structural and enzymatic properties is
[Question ID = 535]
64)
65)
66)
67)
68)
69)
1. Histone [Option ID = 2140]
2. Trypsin [Option ID = 2138]
3. Myosin [Option ID = 2139]
4. Collagen [Option ID = 2137]
Correct Answer :-
Myosin [Option ID = 2139]
Bilateral symmetry in certain group of Phylum Mollusca is lost due to
[Question ID = 595]
1. reversion and rotation [Option ID = 2379]
2. expansion and torsion [Option ID = 2380]
3. torsion [Option ID = 2378]
4. rotation [Option ID = 2377]
Correct Answer :-
torsion [Option ID = 2378]
Bilaterally symmetrical, acoelomate organisms are:
[Question ID = 577]
1. platyhelminthes [Option ID = 2306]
2. sponges [Option ID = 2305]
3. acinadia [Option ID = 2308]
4. nemathelminthes [Option ID = 2307]
Correct Answer :-
platyhelminthes [Option ID = 2306]
Honey bee society is [Question ID = 549]
1. Eusocial [Option ID = 2196]
2. Subsocial [Option ID = 2195]
3. Communal [Option ID = 2193]
4. Parasocial [Option ID = 2194]
Correct Answer :-
Eusocial [Option ID = 2196]
DNA finger-printing employs
[Question ID = 588]
1. pseudo-genes as probes. [Option ID = 2352]
2. unique and house-keeping genes as probes [Option ID = 2349]
3. variable number tandem repeats as probes [Option ID = 2351]
4. specific metabolic genes as probes [Option ID = 2350]
Correct Answer :-
variable number tandem repeats as probes [Option ID = 2351]
BLAST program is used in
[Question ID = 564]
1. DNA sequencing [Option ID = 2253]
2. DNA bar coding [Option ID = 2255]
3. Amino Acid sequencing [Option ID = 2254]
4. Bioinformatics [Option ID = 2256]
Correct Answer :-
Bioinformatics [Option ID = 2256]
Hemophilia is an example of a trait that is carried as a ____________________.
70)
71)
72)
73)
74)
[Question ID = 543]
1. Autosomal dominant [Option ID = 2169]
2. Autosomal recessive [Option ID = 2170]
3. Sex-linked dominant [Option ID = 2171]
4. Sex linked recessive [Option ID = 2172]
Correct Answer :-
Sex linked recessive [Option ID = 2172]
Schizocoelic phyla are
[Question ID = 520]
1. Annelida, Arthropoda, and Mollusca [Option ID = 2079]
2. Arthropoda, Mollusca and Echinodermata [Option ID = 2080]
3. Platyhelminthes, Aschelminthes and Annelida [Option ID = 2078]
4. Protozoa, Porifera, Cnidarians, and Platyhelminthes [Option ID = 2077]
Correct Answer :-
Annelida, Arthropoda, and Mollusca [Option ID = 2079]
In terrestrial vertebrates, which of the following structures did not arise from the pharyngeal pouches?
[Question ID = 522]
1. intervertebral discs [Option ID = 2087]
2. Eustachian tube [Option ID = 2085]
3. parathyroid gland [Option ID = 2088]
4. middle ear [Option ID = 2086]
Correct Answer :-
intervertebral discs [Option ID = 2087]
Species inhabiting in different geographical regions are known as
[Question ID = 545]
1. allopatric [Option ID = 2177]
2. biospecies [Option ID = 2180]
3. sibling species [Option ID = 2178]
4. sympatric [Option ID = 2179]
Correct Answer :-
allopatric [Option ID = 2177]
Frog oocytes do not swell in hypotonic solutions. The most plausible explanation for this is the absence of:
[Question ID = 571]
1. Aquaporins [Option ID = 2282]
2. K+ channels [Option ID = 2284]
3. Na+ channels [Option ID = 2283]
4. Na+ K+ ATPase [Option ID = 2281]
Correct Answer :-
Aquaporins [Option ID = 2282]
Nucleosome core is a structural unit of chromomatin
[Question ID = 616]
1. consisting of 8 histones molecules and a specific length of DNA [Option ID = 2463]
2. consisting of 8 histones molecules and a specific sequence of DNA [Option ID = 2462]
3. consisting of 4 histones molecules and a specific length of DNA [Option ID = 2461]
4. consisting of 4 histones molecules and a specific sequence of DNA [Option ID = 2464]
Correct Answer :-
75)
76)
77)
78)
79)
consisting of 8 histones molecules and a specific length of DNA [Option ID = 2463]
Melting temperature (Tm) of double stranded DNA increases with
[Question ID = 554]
1. Increases by modified bases [Option ID = 2216]
2. Increase in number of adenine/thymine bases [Option ID = 2214]
3. Increase number of guanine/cytosine bases [Option ID = 2213]
4. Bases have no effect on Tm of DNA [Option ID = 2215]
Correct Answer :-
Increase number of guanine/cytosine bases [Option ID = 2213]
Unfolded or misfolded proteins are degraded in:
[Question ID = 560]
1. Golgi [Option ID = 2239]
2. Endoplasmic reticulum [Option ID = 2240]
3. Mitochondria [Option ID = 2237]
4. Proteasomes [Option ID = 2238]
Correct Answer :-
Proteasomes [Option ID = 2238]
Which of the following communicable diseases is NOT transmitted by Aedes? [Question ID = 539]
1. Dengue haemorrhagic fever [Option ID = 2153]
2. Yellow fever [Option ID = 2156]
3. Chikungunia [Option ID = 2155]
4. Sleeping sickness [Option ID = 2154]
Correct Answer :-
Sleeping sickness [Option ID = 2154]
Which of the following is semiautonomous organelle? [Question ID = 541]
1. Golgi complex [Option ID = 2163]
2. Mitochondria [Option ID = 2162]
3. Nucleus [Option ID = 2161]
4. Ribosomes [Option ID = 2164]
Correct Answer :-
Mitochondria [Option ID = 2162]
[Question ID = 612]
1. [Option ID = 2448]
2. [Option ID = 2446]
3. [Option ID = 2445]
80)
81)
4. [Option ID = 2447]
Correct Answer :-
[Option ID = 2445]
[Question ID = 599]
1. [Option ID = 2396]
2. [Option ID = 2394]
3. [Option ID = 2393]
4. [Option ID = 2395]
Correct Answer :-
[Option ID = 2395]
[Question ID = 576]
1. [Option ID = 2304]
2. [Option ID = 2301]
3. [Option ID = 2302]
4. [Option ID = 2303]
82)
83)
84)
85)
86)
87)
Correct Answer :-
[Option ID = 2304]
[Question ID = 597]
1. 8.25 [Option ID = 2385]
2. 6.98 [Option ID = 2388]
3. 7.05 [Option ID = 2386]
4. 6.58 [Option ID = 2387]
Correct Answer :-
6.98 [Option ID = 2388]
If a colour blind female marries a normal male, their children will be [Question ID = 547]
1. normal sons and normal daughters [Option ID = 2188]
2. normal sons and carrier daughters [Option ID = 2187]
3. colour blind sons and colour blind daughters [Option ID = 2185]
4. colour blind sons and carrier daughters [Option ID = 2186]
Correct Answer :-
colour blind sons and carrier daughters [Option ID = 2186]
Y-shaped chaveron bone is present in [Question ID = 550]
1. thoracic vertebrae of mammal [Option ID = 2197]
2. caudal vertebrae of reptile [Option ID = 2199]
3. cervical vertebrae of bird [Option ID = 2198]
4. lumbar vertebrae of amphibian [Option ID = 2200]
Correct Answer :-
caudal vertebrae of reptile [Option ID = 2199]
The heart is not ventral in position in [Question ID = 519]
1. Fish [Option ID = 2074]
2. Frog [Option ID = 2073]
3. Lamprey [Option ID = 2075]
4. Crabs [Option ID = 2076]
Correct Answer :-
Crabs [Option ID = 2076]
What would be the phenotype of E. coli for lac-operon, if the genotype is i+ o- z+ y+ a+?
[Question ID = 603]
1. It would be repressed but inducible by IPTG. [Option ID = 2409]
2. It would be repressed and not induced by IPTG. [Option ID = 2411]
3. It would show constitutive expression of structural genes. [Option ID = 2410]
4. It would show constitutive expression of structural genes whose expression would further be enhanced by IPTG. [Option ID = 2412]
Correct Answer :-
It would show constitutive expression of structural genes. [Option ID = 2410]
Non-disjunction means:
[Question ID = 594]
1. one chromosome being lost [Option ID = 2376]
2. loss of a part of chromosome [Option ID = 2373]
3. duplication of a segment of a chromosome [Option ID = 2374]
4. failure of chromosome pairs to separate during anaphase [Option ID = 2375]
88)
89)
90)
91)
92)
93)
Correct Answer :-
failure of chromosome pairs to separate during anaphase [Option ID = 2375]
Marsupial mammals moved from South America to Australia via [Question ID = 540]
1. Antarctica [Option ID = 2157]
2. Madagascar [Option ID = 2160]
3. the Galapagos Archipelago [Option ID = 2159]
4. Africa [Option ID = 2158]
Correct Answer :-
Antarctica [Option ID = 2157]
Gap junctions are not essential for:
[Question ID = 572]
1. Skeletal muscle contraction [Option ID = 2288]
2. Metabolic coupling [Option ID = 2286]
3. Peristalsis [Option ID = 2287]
4. Transfer of second messengers [Option ID = 2285]
Correct Answer :-
Skeletal muscle contraction [Option ID = 2288]
Bilateral symmetry is seen in the body organization of [Question ID = 517]
1. annelids, arthropods and vertebrates [Option ID = 2068]
2. Vertebrates only [Option ID = 2066]
3. Vertebrates, annelids, arthropods, and cnidarians [Option ID = 2067]
4. Only chordates [Option ID = 2065]
Correct Answer :-
annelids, arthropods and vertebrates [Option ID = 2068]
The absorbance of UV light (280nm) by a protein is largely due to the presence of amino acids with
[Question ID = 596]
1. Acidic R group [Option ID = 2382]
2. Aromatic R group [Option ID = 2383]
3. Basic R group [Option ID = 2384]
4. Aliphatic R group [Option ID = 2381]
Correct Answer :-
Aromatic R group [Option ID = 2383]
The name of the process by which oil glands in mammalian skins secrete oils is:
[Question ID = 538]
1. holocrine secretion [Option ID = 2151]
2. osmosis [Option ID = 2152]
3. apocrine secretion [Option ID = 2150]
4. active transport [Option ID = 2149]
Correct Answer :-
holocrine secretion [Option ID = 2151]
The transition from water to land in the evolution of land vertebrates occurred during:
[Question ID = 585]
1. Cambrian [Option ID = 2337]
2. Devonian [Option ID = 2340]
3. Jurassic [Option ID = 2338]
4. Carboniferous [Option ID = 2339]
94)
95)
96)
97)
98)
99)
Correct Answer :-
Devonian [Option ID = 2340]
The alarming rate of depletion of biodiversity in recent years is mostly due to
[Question ID = 581]
1. ozone depletion. [Option ID = 2324]
2. pollution by pesticides and heavy metals [Option ID = 2323]
3. global warming [Option ID = 2321]
4. habitat destruction [Option ID = 2322]
Correct Answer :-
The scales in shark belong to the type
[Question ID = 607]
1. Cycloid [Option ID = 2426]
2. Ctenoid [Option ID = 2427]
3. Ganoid [Option ID = 2428]
4. Placoid [Option ID = 2425]
Correct Answer :-
Placoid [Option ID = 2425]
The term tunicate makes reference to the urochordate test, or tunic, which is composed of
[Question ID = 523]
1. cellulose [Option ID = 2090]
2. calcium carbonate [Option ID = 2092]
3. silicon dioxide [Option ID = 2089]
4. chitin [Option ID = 2091]
Correct Answer :-
cellulose [Option ID = 2090]
The notochord does not persist throughout life in
[Question ID = 518]
1. Tunicates [Option ID = 2070]
2. Amphioxus [Option ID = 2069]
3. Petromyzon [Option ID = 2071]
4. Myxine [Option ID = 2072]
Correct Answer :-
Tunicates [Option ID = 2070]
At what stage of eukaryotic cell cycle you would expect the DNA to be least compact?
[Question ID = 611]
1. G I-Phase [Option ID = 2441]
2. Leptotene [Option ID = 2444]
3. S-Phase [Option ID = 2443]
4. Mitosis [Option ID = 2442]
Correct Answer :-
S-Phase [Option ID = 2443]
Nicotinamide adenine dinucleotide phosphate is generated in [Question ID = 561]
1. Fatty acid degradation pathway [Option ID = 2244]
2. Glycolysis [Option ID = 2242]
3. Pentose Phosphate pathway [Option ID = 2241]
4. Tricarboxylic acid pathway [Option ID = 2243]
FirstRanker.com - FirstRanker's Choice
1)
2)
3)
4)
5)
DU MSc Zoology
Topic:- DU_J18_MSC_ZOO
Which of the following is NOT a characteristic of lakes suffering from organic pollution?
[Question ID = 582]
1. High microbial concentration [Option ID = 2325]
2. High biochemical oxygen demand [Option ID = 2327]
3. Low phosphate levels [Option ID = 2328]
4. Frequent algal blooms [Option ID = 2326]
Correct Answer :-
Low phosphate levels [Option ID = 2328]
Which of the following was probably absent at the time of origin of life ?
[Question ID = 546]
1. Oxygen [Option ID = 2182]
2. Hydrogen [Option ID = 2181]
3. Methane [Option ID = 2183]
4. Carbon dioxide [Option ID = 2184]
Correct Answer :-
Oxygen [Option ID = 2182]
Which of the following genotypes causes Klinefelter syndrome?
[Question ID = 530]
1. XYY [Option ID = 2120]
2. XO [Option ID = 2117]
3. XXY [Option ID = 2118]
4. XX [Option ID = 2119]
Correct Answer :-
XXY [Option ID = 2118]
Which of the following is wrong match for enzyme classification?
[Question ID = 601]
1. EC 2 ? Trasnferases [Option ID = 2402]
2. EC 3- Hydrolases [Option ID = 2403]
3. EC 1 - Oxidoreductases [Option ID = 2401]
4. EC 4- Ligases [Option ID = 2404]
Correct Answer :-
EC 4- Ligases [Option ID = 2404]
Which of the following is not a possible explanation for the rapid rate of evolution of beak shape in Darwin?s finches?
[Question ID = 614]
1. Strong selection pressure [Option ID = 2455]
2. Small population size [Option ID = 2456]
3. High mutation rate [Option ID = 2453]
4. High emigrations and immigration rate [Option ID = 2454]
Correct Answer :-
High mutation rate [Option ID = 2453]
6)
7)
8)
9)
10)
11)
Which of the following animals is primarily an ectotherm?
[Question ID = 542]
1. Hawk [Option ID = 2165]
2. Lizard [Option ID = 2166]
3. Elephant [Option ID = 2168]
4. Shrew [Option ID = 2167]
Correct Answer :-
Lizard [Option ID = 2166]
Which of the following technique was used by Messelon and Stahl to separate DNA labeled with 15
N
from 14
N
?
[Question ID = 609]
1. Ion-exchange chromatography [Option ID = 2436]
2. Molecular-sieve filtration chromatography [Option ID = 2435]
3. Agarose Gel electrophoresis [Option ID = 2434]
4. CsCl density gradient centrifugation [Option ID = 2433]
Correct Answer :-
CsCl density gradient centrifugation [Option ID = 2433]
Which of the following molecule is most abundant in living system?
[Question ID = 608]
1. Water [Option ID = 2432]
2. Cellulose [Option ID = 2430]
3. Protein [Option ID = 2429]
4. Starch [Option ID = 2431]
Correct Answer :-
Water [Option ID = 2432]
Which system is active under stress?
[Question ID = 536]
1. Sympathetic nervous system [Option ID = 2142]
2. Somatic nervous system [Option ID = 2143]
3. Parasympathetic nervous system [Option ID = 2141]
4. Complete autonomic nervous system [Option ID = 2144]
Correct Answer :-
Sympathetic nervous system [Option ID = 2142]
Which is the first National park established in India:
[Question ID = 583]
1. Jim Corbet National Park [Option ID = 2329]
2. Periyar National Park [Option ID = 2332]
3. Kanziranga National Park [Option ID = 2330]
4. Kanha National Park [Option ID = 2331]
Correct Answer :-
Jim Corbet National Park [Option ID = 2329]
Doubling time for E. coli is 20 min. If the initial number of bacterium in a culture is 100, what would be number of bacterium after 60
min. [Question ID = 606]
1. 300 [Option ID = 2422]
2. 400 [Option ID = 2423]
3. 100 [Option ID = 2421]
4. 800 [Option ID = 2424]
12)
13)
14)
15)
16)
17)
Correct Answer :-
800 [Option ID = 2424]
X-chromosome inactivation
[Question ID = 527]
1. Is the cause of the y chromosome being genetically inactive [Option ID = 2106]
2. Takes place in humans so that the same X chromosome is inactive in all the cells of a female [Option ID = 2107]
3. Normally takes place in males but not in females [Option ID = 2105]
4. Results in genetically turning off one of the two X chromosome in female mammals [Option ID = 2108]
Correct Answer :-
Results in genetically turning off one of the two X chromosome in female mammals [Option ID = 2108]
In ecological succession from pioneer to climax community, the biomass shall:
[Question ID = 584]
1. Increase and then decrease [Option ID = 2334]
2. Increase continuously [Option ID = 2336]
3. Decrease [Option ID = 2333]
4. No relation [Option ID = 2335]
Correct Answer :-
Increase continuously [Option ID = 2336]
Import of glucose by the liver cell:
[Question ID = 569]
1. Is dependent on hydrolysis of ATP [Option ID = 2273]
2. Is facilitated by GLUT2 [Option ID = 2276]
3. Occurs throughout the phospholipid bilayer [Option ID = 2275]
4. Requires expression of GLUT1 on the plasma membrane [Option ID = 2274]
Correct Answer :-
Is facilitated by GLUT2 [Option ID = 2276]
The origin of the jaw in the gnathostomes is the
[Question ID = 524]
1. hyoid [Option ID = 2096]
2. gill arch [Option ID = 2093]
3. notochord [Option ID = 2095]
4. bones supporting the cranium [Option ID = 2094]
Correct Answer :-
gill arch [Option ID = 2093]
The dynamics of which cytoskeletal element changes in a moving amoeba?
[Question ID = 568]
1. Intermediate filaments [Option ID = 2271]
2. MreB [Option ID = 2272]
3. Microtubules [Option ID = 2269]
4. Microfilaments [Option ID = 2270]
Correct Answer :-
Microfilaments [Option ID = 2270]
Repeat core sequences consisting of 2, 3, or 4 base pairs are known as what?
[Question ID = 531]
18)
19)
20)
21)
22)
1. Single nucleotide polymorphisms (SNPs) [Option ID = 2121]
2. Minisatellites [Option ID = 2123]
3. Telomeres [Option ID = 2124]
4. Microsatellites [Option ID = 2122]
Correct Answer :-
Microsatellites [Option ID = 2122]
A haltere is a
[Question ID = 551]
1. Device used by a male insect to attract female for mating [Option ID = 2204]
2. balancing organ of housefly [Option ID = 2203]
3. sense organ of butterfly [Option ID = 2201]
4. modified forewing of beetle [Option ID = 2202]
Correct Answer :-
balancing organ of housefly [Option ID = 2203]
Linolenic (C18: 9,12,15) is an essential fatty acid for human because:
[Question ID = 555]
1. Lenolenic acid is available in fruits [Option ID = 2217]
2. Lenolenic acid gives much energy that palmitic acid [Option ID = 2219]
3. It is unsaturated fatty acid [Option ID = 2220]
4. Human cannot introduce double bond beyond 9-10 carbon of fatty acids [Option ID = 2218]
Correct Answer :-
Human cannot introduce double bond beyond 9-10 carbon of fatty acids [Option ID = 2218]
Passive immunity is obtained by:
[Question ID = 589]
1. Injecting the serum of another animal/individual containing antitoxin [Option ID = 2354]
2. Our own body cells preparing antibodies [Option ID = 2353]
3. Blood transfusion and blood clotting [Option ID = 2356]
4. Drinking medicinal concoctions [Option ID = 2355]
Correct Answer :-
Injecting the serum of another animal/individual containing antitoxin [Option ID = 2354]
2-amino-3 hydroxy propionic acid is the chemical name for which of the following amino acid:
[Question ID = 580]
1. serine [Option ID = 2320]
2. valine [Option ID = 2319]
3. glycine [Option ID = 2317]
4. alanine [Option ID = 2318]
Correct Answer :-
serine [Option ID = 2320]
Low pH of the lysosomal compartment is maintained by
[Question ID = 613]
1. Glycolysis [Option ID = 2452]
2. Electron transport chain [Option ID = 2449]
3. Proton ATPase at the membrane [Option ID = 2450]
4. Luminal acid production [Option ID = 2451]
Correct Answer :-
Proton ATPase at the membrane [Option ID = 2450]
23)
24)
25)
26)
27)
28)
Kidney of the vertebrate embryo develops from:
[Question ID = 591]
1. Mesoderm [Option ID = 2363]
2. Archenteron [Option ID = 2364]
3. Endoderm [Option ID = 2362]
4. Ectoderm [Option ID = 2361]
Correct Answer :-
Mesoderm [Option ID = 2363]
DNA is genetic material in
[Question ID = 563]
1. Only eukaryotes [Option ID = 2251]
2. Only Prokaryotes and eukaryotes [Option ID = 2250]
3. All viruses, prokaryotes, eukaryotes [Option ID = 2249]
4. Some viruses, all prokaryotes and eukaryotes [Option ID = 2252]
Correct Answer :-
Some viruses, all prokaryotes and eukaryotes [Option ID = 2252]
Which of the following statement is NOT TRUE for a competitive inhibitor in an enzyme catalysed reaction?
[Question ID = 600]
1. Their inhibition can be reversed by increasing the substrate concentration [Option ID = 2400]
2. They compete with substrate for binding to the active site. [Option ID = 2398]
3. They are structural analogues of the substrate. [Option ID = 2397]
4. They increase the Km, and decrease the Vmax. [Option ID = 2399]
Correct Answer :-
They increase the Km, and decrease the Vmax. [Option ID = 2399]
Knee joint is a
[Question ID = 548]
1. fibrous joint [Option ID = 2192]
2. cartilaginous joint [Option ID = 2191]
3. collagenous joint [Option ID = 2189]
4. synovial joint [Option ID = 2190]
Correct Answer :-
synovial joint [Option ID = 2190]
The heaviest organelle in cell is:
[Question ID = 556]
1. Lysosomes [Option ID = 2223]
2. Ribosomes [Option ID = 2224]
3. Nucleus [Option ID = 2222]
4. Mitochondria [Option ID = 2221]
Correct Answer :-
Nucleus [Option ID = 2222]
Wallace?s line is present in between
[Question ID = 544]
1. Oriental and Australian regions [Option ID = 2173]
2. Palaearctic and Ethiopian regions [Option ID = 2176]
3. Neotropical and Nearctic regions [Option ID = 2175]
4. Ethiopian and Oriental regions [Option ID = 2174]
29)
30)
31)
32)
33)
34)
Correct Answer :-
Oriental and Australian regions [Option ID = 2173]
In bivalves, which structure secretes pearl?
[Question ID = 598]
1. Nacreous gland. [Option ID = 2392]
2. Nacreous layer [Option ID = 2391]
3. Prismatic layer [Option ID = 2390]
4. Periostracum layer [Option ID = 2389]
Correct Answer :-
Nacreous layer [Option ID = 2391]
Ampicillin inhibits:
[Question ID = 559]
1. Cell wall synthesis in bacterial cells [Option ID = 2236]
2. RNA synthesis in Bacterial cells [Option ID = 2234]
3. DNA synthesis in bacterial cells [Option ID = 2233]
4. Protein synthesis in mammalian cell [Option ID = 2235]
Correct Answer :-
Cell wall synthesis in bacterial cells [Option ID = 2236]
Hiccups can be best described as ___________.
[Question ID = 534]
1. sign of somebody remembering you [Option ID = 2136]
2. vibration of the soft palate during breathing while sleeping [Option ID = 2135]
3. jerky incomplete inspiration [Option ID = 2134]
4. forceful sudden expiration [Option ID = 2133]
Correct Answer :-
jerky incomplete inspiration [Option ID = 2134]
At Isoelectric pH the charge on protein is:
[Question ID = 553]
1. Positive charge on protein [Option ID = 2210]
2. Negative charge on protein [Option ID = 2211]
3. No charge on protein [Option ID = 2209]
4. Net charge on protein is zero [Option ID = 2212]
Correct Answer :-
Net charge on protein is zero [Option ID = 2212]
Lac is a material which is
[Question ID = 552]
1. hardened fecal matter of lac insect [Option ID = 2205]
2. protective secretion deposited by female lac insect [Option ID = 2206]
3. protective covering secreted by larva [Option ID = 2207]
4. resin secreted by the plant [Option ID = 2208]
Correct Answer :-
protective secretion deposited by female lac insect [Option ID = 2206]
Hardy-Weinberg?s law gives the concept of
[Question ID = 586]
35)
36)
37)
38)
39)
1. natural selection. [Option ID = 2344]
2. genetic drift [Option ID = 2341]
3. genetic equilibrium [Option ID = 2343]
4. mutation [Option ID = 2342]
Correct Answer :-
genetic equilibrium [Option ID = 2343]
The vertical migration of plankton is an instance of
[Question ID = 579]
1. Circadian rythmes [Option ID = 2313]
2. Circannual rythmes [Option ID = 2314]
3. photopriodism [Option ID = 2315]
4. photokinesis. [Option ID = 2316]
Correct Answer :-
Circadian rythmes [Option ID = 2313]
Treadmilling of actin filaments in the steady state occurs at G-actin concentration
[Question ID = 565]
1. Below the Cc of the (-) end [Option ID = 2257]
2. Above the Cc of the (-) end but below the Cc of the (+) end [Option ID = 2259]
3. Above the Cc of the (+) end but below the Cc of the (-) end [Option ID = 2260]
4. Above the Cc of the (+) end [Option ID = 2258]
Correct Answer :-
Above the Cc of the (+) end but below the Cc of the (-) end [Option ID = 2260]
Exon skipping is associated with:
[Question ID = 528]
1. regulatory mutations [Option ID = 2110]
2. RNA processing mutations [Option ID = 2111]
3. nonsense mutations [Option ID = 2109]
4. silent mutations [Option ID = 2112]
Correct Answer :-
RNA processing mutations [Option ID = 2111]
Bile is produced in our body which
[Question ID = 557]
1. Act as a surfactant to emulsify lipids in intestine. [Option ID = 2226]
2. It has no role associated with our body [Option ID = 2228]
3. Helps in digestion of starch in intestinbe [Option ID = 2227]
4. Helps in controlling blood pressure [Option ID = 2225]
Correct Answer :-
Act as a surfactant to emulsify lipids in intestine. [Option ID = 2226]
The inner cell mass of mammalian blastocyst develops into,
[Question ID = 578]
1. all embryonic structures [Option ID = 2311]
2. embryonic endoderm [Option ID = 2309]
3. chorio-allantoic placenta [Option ID = 2312]
4. yolk-sac placenta [Option ID = 2310]
Correct Answer :-
all embryonic structures [Option ID = 2311]
40)
41)
42)
43)
44)
45)
The isoform/s of actin present in muscle cells
[Question ID = 566]
1. beta-actin [Option ID = 2263]
2. beta-and gamma-actin [Option ID = 2264]
3. alpha-actin [Option ID = 2261]
4. alpha and beta-actin [Option ID = 2262]
Correct Answer :-
alpha-actin [Option ID = 2261]
The four postulates of the Chemiosmotic hypothesis accounted for:
[Question ID = 574]
1. ETC, F1-F0 ATPase, cardiolipin and pmf generators [Option ID = 2295]
2. ETC, F1-F0 ATPase, cardiolipin and anion exchangers [Option ID = 2296]
3. Cardiolipin [Option ID = 2294]
4. The four complexes of the electron transport chain (ETC). [Option ID = 2293]
Correct Answer :-
ETC, F1-F0 ATPase, cardiolipin and anion exchangers [Option ID = 2296]
Cilia and flagella contains a contractile protein called:
[Question ID = 575]
1. Myosin [Option ID = 2300]
2. Tubulin [Option ID = 2298]
3. Actin [Option ID = 2299]
4. Dyenin [Option ID = 2297]
Correct Answer :-
Dyenin [Option ID = 2297]
Insects such as Drosophila undergo three molts before undergoing metamorphosis. Molting is controlled by which of the following
hormone?
[Question ID = 532]
1. juvenile hormone [Option ID = 2126]
2. growth hormone [Option ID = 2128]
3. auxin [Option ID = 2127]
4. ecdysone [Option ID = 2125]
Correct Answer :-
ecdysone [Option ID = 2125]
Injection of anti-venom to a patient for snake bite is an example of
[Question ID = 562]
1. Artificially acquired active immunity [Option ID = 2246]
2. Artificially acquired passive immunity [Option ID = 2248]
3. Naturally acquired active immunity [Option ID = 2245]
4. Naturally acquired passive immunity [Option ID = 2247]
Correct Answer :-
Artificially acquired passive immunity [Option ID = 2248]
Steroid hormones are synthesized from
[Question ID = 558]
1. Glycogen [Option ID = 2232]
2. Tryptophan [Option ID = 2229]
3. Stearic acid [Option ID = 2231]
4. Cholesterol [Option ID = 2230]
46)
47)
48)
49)
50)
51)
Correct Answer :-
Cholesterol [Option ID = 2230]
When a heterozygous offspring is crossed to homozygous recessive parent, it is called as
[Question ID = 533]
1. Test cross [Option ID = 2129]
2. Reciprocal cross [Option ID = 2130]
3. Dihybrid cross [Option ID = 2132]
4. Monohybrid cross [Option ID = 2131]
Correct Answer :-
Test cross [Option ID = 2129]
Identify the statement that is NOT TRUE for Iron-sulphur clusters
[Question ID = 573]
1. These are prosthetic groups of succinate-coenzyme Q reductase complex. [Option ID = 2289]
2. These accept and release electrons one at a time [Option ID = 2291]
3. They contain Fe bonded to inorganic S atoms and S atoms on cysteine residues of proteins [Option ID = 2290]
4. They are always associated with cytochromes. [Option ID = 2292]
Correct Answer :-
They are always associated with cytochromes. [Option ID = 2292]
Of the early fish, which led to the extant fish of today?
[Question ID = 525]
1. cephalochordates [Option ID = 2099]
2. acanthodians [Option ID = 2100]
3. placoderms [Option ID = 2098]
4. heterostracans [Option ID = 2097]
Correct Answer :-
acanthodians [Option ID = 2100]
Water is a good solvent for inorganic salts because
[Question ID = 615]
1. hydrogen bond [Option ID = 2459]
2. dielectric constant [Option ID = 2457]
3. polarity [Option ID = 2458]
4. conductivity [Option ID = 2460]
Correct Answer :-
If the sequence of coding strand in a transcription unit is as follows: 5?-GAATTGCCAATTGCAGTC-3?, the sequence of mRNA
transcribed from the transcription unit would be, [Question ID = 604]
1. 3?-GAAUUGCCAAUUGCAGUC-5? [Option ID = 2416]
2. 5?-CUUAACGGUUAACGUCAG-3? [Option ID = 2414]
3. 5?-GAAUUGCCAAUUGCAGUC-3? [Option ID = 2413]
4. 5?-GACUGCAAUUGGCAAUUC-3? [Option ID = 2415]
Correct Answer :-
5?-GAAUUGCCAAUUGCAGUC-3? [Option ID = 2413]
In a Robertsonian translocation fusion occurs at the:
[Question ID = 529]
1. centromeres [Option ID = 2114]
2. histones [Option ID = 2115]
3. telomeres [Option ID = 2113]
52)
53)
54)
55)
56)
57)
4. ends of the long arms [Option ID = 2116]
Correct Answer :-
centromeres [Option ID = 2114]
Symporters are cotransporters that transport:
[Question ID = 570]
1. Cations and anions in the opposite direction. [Option ID = 2278]
2. Glucose against its concentration gradient. [Option ID = 2280]
3. Small molecules and gases in the same direction. [Option ID = 2277]
4. Na+ ions and glucose against the concentration gradient. [Option ID = 2279]
Correct Answer :-
Glucose against its concentration gradient. [Option ID = 2280]
Bidirectional movement of vesicles requires
[Question ID = 567]
1. Kinesin I [Option ID = 2265]
2. Association of (+) and (-) end-directed motors [Option ID = 2268]
3. A flexible neck region on the motor protein [Option ID = 2267]
4. Microtubules and microfilaments [Option ID = 2266]
Correct Answer :-
Association of (+) and (-) end-directed motors [Option ID = 2268]
Pharyngeal gill slits
[Question ID = 521]
1. are not found in protochordates, but are present in vertebrates, at least during the embryonic life [Option ID = 2084]
2. are found in higher inverterates and vertebrates [Option ID = 2083]
3. are found in fishes, crabs, snails, aquatic insects [Option ID = 2082]
4. are unique chordate characteristic [Option ID = 2081]
Correct Answer :-
are unique chordate characteristic [Option ID = 2081]
Three pg of a hypothetical protein-X is present in a cell. How many molecules of protein-X would be present in a cell, if the molecular
weight of the protein is 30000? (Given, Avogaro?s number is 6 x 10
23
)
[Question ID = 610]
1. 6 x 10
15
[Option ID = 2439]
2. 6 x 10
7
[Option ID = 2438]
3. 6 x 10
23
[Option ID = 2440]
4. 6 x 10
6
[Option ID = 2437]
Correct Answer :-
6 x 10
7
[Option ID = 2438]
Ciliated pseudostratified columnar epithelia are found in
[Question ID = 537]
1. membranous part of male vas deferens [Option ID = 2147]
2. linings of the trachea & upper respiratory tract [Option ID = 2146]
3. lining of the trachea [Option ID = 2145]
4. Vagina [Option ID = 2148]
Correct Answer :-
linings of the trachea & upper respiratory tract [Option ID = 2146]
In vertebrates, which one of the following structures is believed to have been transformed into thyroid gland? [Question ID = 592]
58)
59)
60)
61)
62)
63)
1. Pygostyle [Option ID = 2365]
2. Analstyle [Option ID = 2367]
3. Endostyle [Option ID = 2368]
4. Urostyle [Option ID = 2366]
Correct Answer :-
Endostyle [Option ID = 2368]
DNA double helix is stabilized by: [Question ID = 602]
1. Hydrophobic interactions only [Option ID = 2408]
2. H-bonds only [Option ID = 2405]
3. H-bonds and base stacking interactions [Option ID = 2406]
4. Electrostatic interactions [Option ID = 2407]
Correct Answer :-
H-bonds and base stacking interactions [Option ID = 2406]
Three forms of Daphnia are found in varying seasons. This phenomenon is called: [Question ID = 593]
1. Poly morphism [Option ID = 2369]
2. Seasonal peroidicity [Option ID = 2371]
3. Adaptation [Option ID = 2372]
4. Cyclomorphism [Option ID = 2370]
Correct Answer :-
Cyclomorphism [Option ID = 2370]
A gene showing co-dominance
[Question ID = 526]
1. Has alleles tightly linked on the same chromosome [Option ID = 2103]
2. Has alleles expressed at the same time in development [Option ID = 2104]
3. Has one allele dominant to the other [Option ID = 2101]
4. Has both alleles independently expressed in heterozygote [Option ID = 2102]
Correct Answer :-
Has both alleles independently expressed in heterozygote [Option ID = 2102]
If the atrioventricular node could be surgically removed from the heart without disrupting signal transmission to bundle of His,
then?
[Question ID = 587]
1. atria & ventricle would contract almost simultaneously [Option ID = 2348]
2. the heart rate would be decreased. [Option ID = 2345]
3. only artia would contract. [Option ID = 2346]
4. only ventricle would contract. [Option ID = 2347]
Correct Answer :-
atria & ventricle would contract almost simultaneously [Option ID = 2348]
A double stranded DNA has 30 mole percent of cytosine. What would be the mole percent of adenine in it?
[Question ID = 605]
1. 40 [Option ID = 2419]
2. 20 [Option ID = 2417]
3. 60 [Option ID = 2420]
4. 30 [Option ID = 2418]
Correct Answer :-
20 [Option ID = 2417]
A protein having both structural and enzymatic properties is
[Question ID = 535]
64)
65)
66)
67)
68)
69)
1. Histone [Option ID = 2140]
2. Trypsin [Option ID = 2138]
3. Myosin [Option ID = 2139]
4. Collagen [Option ID = 2137]
Correct Answer :-
Myosin [Option ID = 2139]
Bilateral symmetry in certain group of Phylum Mollusca is lost due to
[Question ID = 595]
1. reversion and rotation [Option ID = 2379]
2. expansion and torsion [Option ID = 2380]
3. torsion [Option ID = 2378]
4. rotation [Option ID = 2377]
Correct Answer :-
torsion [Option ID = 2378]
Bilaterally symmetrical, acoelomate organisms are:
[Question ID = 577]
1. platyhelminthes [Option ID = 2306]
2. sponges [Option ID = 2305]
3. acinadia [Option ID = 2308]
4. nemathelminthes [Option ID = 2307]
Correct Answer :-
platyhelminthes [Option ID = 2306]
Honey bee society is [Question ID = 549]
1. Eusocial [Option ID = 2196]
2. Subsocial [Option ID = 2195]
3. Communal [Option ID = 2193]
4. Parasocial [Option ID = 2194]
Correct Answer :-
Eusocial [Option ID = 2196]
DNA finger-printing employs
[Question ID = 588]
1. pseudo-genes as probes. [Option ID = 2352]
2. unique and house-keeping genes as probes [Option ID = 2349]
3. variable number tandem repeats as probes [Option ID = 2351]
4. specific metabolic genes as probes [Option ID = 2350]
Correct Answer :-
variable number tandem repeats as probes [Option ID = 2351]
BLAST program is used in
[Question ID = 564]
1. DNA sequencing [Option ID = 2253]
2. DNA bar coding [Option ID = 2255]
3. Amino Acid sequencing [Option ID = 2254]
4. Bioinformatics [Option ID = 2256]
Correct Answer :-
Bioinformatics [Option ID = 2256]
Hemophilia is an example of a trait that is carried as a ____________________.
70)
71)
72)
73)
74)
[Question ID = 543]
1. Autosomal dominant [Option ID = 2169]
2. Autosomal recessive [Option ID = 2170]
3. Sex-linked dominant [Option ID = 2171]
4. Sex linked recessive [Option ID = 2172]
Correct Answer :-
Sex linked recessive [Option ID = 2172]
Schizocoelic phyla are
[Question ID = 520]
1. Annelida, Arthropoda, and Mollusca [Option ID = 2079]
2. Arthropoda, Mollusca and Echinodermata [Option ID = 2080]
3. Platyhelminthes, Aschelminthes and Annelida [Option ID = 2078]
4. Protozoa, Porifera, Cnidarians, and Platyhelminthes [Option ID = 2077]
Correct Answer :-
Annelida, Arthropoda, and Mollusca [Option ID = 2079]
In terrestrial vertebrates, which of the following structures did not arise from the pharyngeal pouches?
[Question ID = 522]
1. intervertebral discs [Option ID = 2087]
2. Eustachian tube [Option ID = 2085]
3. parathyroid gland [Option ID = 2088]
4. middle ear [Option ID = 2086]
Correct Answer :-
intervertebral discs [Option ID = 2087]
Species inhabiting in different geographical regions are known as
[Question ID = 545]
1. allopatric [Option ID = 2177]
2. biospecies [Option ID = 2180]
3. sibling species [Option ID = 2178]
4. sympatric [Option ID = 2179]
Correct Answer :-
allopatric [Option ID = 2177]
Frog oocytes do not swell in hypotonic solutions. The most plausible explanation for this is the absence of:
[Question ID = 571]
1. Aquaporins [Option ID = 2282]
2. K+ channels [Option ID = 2284]
3. Na+ channels [Option ID = 2283]
4. Na+ K+ ATPase [Option ID = 2281]
Correct Answer :-
Aquaporins [Option ID = 2282]
Nucleosome core is a structural unit of chromomatin
[Question ID = 616]
1. consisting of 8 histones molecules and a specific length of DNA [Option ID = 2463]
2. consisting of 8 histones molecules and a specific sequence of DNA [Option ID = 2462]
3. consisting of 4 histones molecules and a specific length of DNA [Option ID = 2461]
4. consisting of 4 histones molecules and a specific sequence of DNA [Option ID = 2464]
Correct Answer :-
75)
76)
77)
78)
79)
consisting of 8 histones molecules and a specific length of DNA [Option ID = 2463]
Melting temperature (Tm) of double stranded DNA increases with
[Question ID = 554]
1. Increases by modified bases [Option ID = 2216]
2. Increase in number of adenine/thymine bases [Option ID = 2214]
3. Increase number of guanine/cytosine bases [Option ID = 2213]
4. Bases have no effect on Tm of DNA [Option ID = 2215]
Correct Answer :-
Increase number of guanine/cytosine bases [Option ID = 2213]
Unfolded or misfolded proteins are degraded in:
[Question ID = 560]
1. Golgi [Option ID = 2239]
2. Endoplasmic reticulum [Option ID = 2240]
3. Mitochondria [Option ID = 2237]
4. Proteasomes [Option ID = 2238]
Correct Answer :-
Proteasomes [Option ID = 2238]
Which of the following communicable diseases is NOT transmitted by Aedes? [Question ID = 539]
1. Dengue haemorrhagic fever [Option ID = 2153]
2. Yellow fever [Option ID = 2156]
3. Chikungunia [Option ID = 2155]
4. Sleeping sickness [Option ID = 2154]
Correct Answer :-
Sleeping sickness [Option ID = 2154]
Which of the following is semiautonomous organelle? [Question ID = 541]
1. Golgi complex [Option ID = 2163]
2. Mitochondria [Option ID = 2162]
3. Nucleus [Option ID = 2161]
4. Ribosomes [Option ID = 2164]
Correct Answer :-
Mitochondria [Option ID = 2162]
[Question ID = 612]
1. [Option ID = 2448]
2. [Option ID = 2446]
3. [Option ID = 2445]
80)
81)
4. [Option ID = 2447]
Correct Answer :-
[Option ID = 2445]
[Question ID = 599]
1. [Option ID = 2396]
2. [Option ID = 2394]
3. [Option ID = 2393]
4. [Option ID = 2395]
Correct Answer :-
[Option ID = 2395]
[Question ID = 576]
1. [Option ID = 2304]
2. [Option ID = 2301]
3. [Option ID = 2302]
4. [Option ID = 2303]
82)
83)
84)
85)
86)
87)
Correct Answer :-
[Option ID = 2304]
[Question ID = 597]
1. 8.25 [Option ID = 2385]
2. 6.98 [Option ID = 2388]
3. 7.05 [Option ID = 2386]
4. 6.58 [Option ID = 2387]
Correct Answer :-
6.98 [Option ID = 2388]
If a colour blind female marries a normal male, their children will be [Question ID = 547]
1. normal sons and normal daughters [Option ID = 2188]
2. normal sons and carrier daughters [Option ID = 2187]
3. colour blind sons and colour blind daughters [Option ID = 2185]
4. colour blind sons and carrier daughters [Option ID = 2186]
Correct Answer :-
colour blind sons and carrier daughters [Option ID = 2186]
Y-shaped chaveron bone is present in [Question ID = 550]
1. thoracic vertebrae of mammal [Option ID = 2197]
2. caudal vertebrae of reptile [Option ID = 2199]
3. cervical vertebrae of bird [Option ID = 2198]
4. lumbar vertebrae of amphibian [Option ID = 2200]
Correct Answer :-
caudal vertebrae of reptile [Option ID = 2199]
The heart is not ventral in position in [Question ID = 519]
1. Fish [Option ID = 2074]
2. Frog [Option ID = 2073]
3. Lamprey [Option ID = 2075]
4. Crabs [Option ID = 2076]
Correct Answer :-
Crabs [Option ID = 2076]
What would be the phenotype of E. coli for lac-operon, if the genotype is i+ o- z+ y+ a+?
[Question ID = 603]
1. It would be repressed but inducible by IPTG. [Option ID = 2409]
2. It would be repressed and not induced by IPTG. [Option ID = 2411]
3. It would show constitutive expression of structural genes. [Option ID = 2410]
4. It would show constitutive expression of structural genes whose expression would further be enhanced by IPTG. [Option ID = 2412]
Correct Answer :-
It would show constitutive expression of structural genes. [Option ID = 2410]
Non-disjunction means:
[Question ID = 594]
1. one chromosome being lost [Option ID = 2376]
2. loss of a part of chromosome [Option ID = 2373]
3. duplication of a segment of a chromosome [Option ID = 2374]
4. failure of chromosome pairs to separate during anaphase [Option ID = 2375]
88)
89)
90)
91)
92)
93)
Correct Answer :-
failure of chromosome pairs to separate during anaphase [Option ID = 2375]
Marsupial mammals moved from South America to Australia via [Question ID = 540]
1. Antarctica [Option ID = 2157]
2. Madagascar [Option ID = 2160]
3. the Galapagos Archipelago [Option ID = 2159]
4. Africa [Option ID = 2158]
Correct Answer :-
Antarctica [Option ID = 2157]
Gap junctions are not essential for:
[Question ID = 572]
1. Skeletal muscle contraction [Option ID = 2288]
2. Metabolic coupling [Option ID = 2286]
3. Peristalsis [Option ID = 2287]
4. Transfer of second messengers [Option ID = 2285]
Correct Answer :-
Skeletal muscle contraction [Option ID = 2288]
Bilateral symmetry is seen in the body organization of [Question ID = 517]
1. annelids, arthropods and vertebrates [Option ID = 2068]
2. Vertebrates only [Option ID = 2066]
3. Vertebrates, annelids, arthropods, and cnidarians [Option ID = 2067]
4. Only chordates [Option ID = 2065]
Correct Answer :-
annelids, arthropods and vertebrates [Option ID = 2068]
The absorbance of UV light (280nm) by a protein is largely due to the presence of amino acids with
[Question ID = 596]
1. Acidic R group [Option ID = 2382]
2. Aromatic R group [Option ID = 2383]
3. Basic R group [Option ID = 2384]
4. Aliphatic R group [Option ID = 2381]
Correct Answer :-
Aromatic R group [Option ID = 2383]
The name of the process by which oil glands in mammalian skins secrete oils is:
[Question ID = 538]
1. holocrine secretion [Option ID = 2151]
2. osmosis [Option ID = 2152]
3. apocrine secretion [Option ID = 2150]
4. active transport [Option ID = 2149]
Correct Answer :-
holocrine secretion [Option ID = 2151]
The transition from water to land in the evolution of land vertebrates occurred during:
[Question ID = 585]
1. Cambrian [Option ID = 2337]
2. Devonian [Option ID = 2340]
3. Jurassic [Option ID = 2338]
4. Carboniferous [Option ID = 2339]
94)
95)
96)
97)
98)
99)
Correct Answer :-
Devonian [Option ID = 2340]
The alarming rate of depletion of biodiversity in recent years is mostly due to
[Question ID = 581]
1. ozone depletion. [Option ID = 2324]
2. pollution by pesticides and heavy metals [Option ID = 2323]
3. global warming [Option ID = 2321]
4. habitat destruction [Option ID = 2322]
Correct Answer :-
The scales in shark belong to the type
[Question ID = 607]
1. Cycloid [Option ID = 2426]
2. Ctenoid [Option ID = 2427]
3. Ganoid [Option ID = 2428]
4. Placoid [Option ID = 2425]
Correct Answer :-
Placoid [Option ID = 2425]
The term tunicate makes reference to the urochordate test, or tunic, which is composed of
[Question ID = 523]
1. cellulose [Option ID = 2090]
2. calcium carbonate [Option ID = 2092]
3. silicon dioxide [Option ID = 2089]
4. chitin [Option ID = 2091]
Correct Answer :-
cellulose [Option ID = 2090]
The notochord does not persist throughout life in
[Question ID = 518]
1. Tunicates [Option ID = 2070]
2. Amphioxus [Option ID = 2069]
3. Petromyzon [Option ID = 2071]
4. Myxine [Option ID = 2072]
Correct Answer :-
Tunicates [Option ID = 2070]
At what stage of eukaryotic cell cycle you would expect the DNA to be least compact?
[Question ID = 611]
1. G I-Phase [Option ID = 2441]
2. Leptotene [Option ID = 2444]
3. S-Phase [Option ID = 2443]
4. Mitosis [Option ID = 2442]
Correct Answer :-
S-Phase [Option ID = 2443]
Nicotinamide adenine dinucleotide phosphate is generated in [Question ID = 561]
1. Fatty acid degradation pathway [Option ID = 2244]
2. Glycolysis [Option ID = 2242]
3. Pentose Phosphate pathway [Option ID = 2241]
4. Tricarboxylic acid pathway [Option ID = 2243]
100)
Correct Answer :-
Pentose Phosphate pathway [Option ID = 2241]
Haemophilia or bleeder?s disease is due to a defective gene which does not produce:
[Question ID = 590]
1. Thromboplastin [Option ID = 2359]
2. Prothrombin [Option ID = 2360]
3. Fibrinogen [Option ID = 2357]
4. Calcium salts [Option ID = 2358]
Correct Answer :-
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This post was last modified on 29 January 2020