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