Delhi University Entrance Test (DUET) 2020 Previous Year Question Paper With Answer Key
DU MSc PhD Comb degree in Bio Sci N MSc in Bio Sci
Topic: BIOSCI MSC S2
1) Balbiani Rings occur in
[Question ID = 9207]
1. Autosomes [Option ID = 36822]
2. Hetrosomes [Option ID = 36823]
3. Polytene chromosomes [Option ID = 36824]
4. Lampbrush chromosomes [Option ID = 36825]
Correct Answer :
Polytene chromosomes [Option ID = 36824]
2) Which of the following is NOT a type of cancer?
[Question ID = 9208]
1. Carcinomas
[Option ID = 36826]
2. Sarcomas
[Option ID = 36827]
3. Leukemia
[Option ID = 36828]
4. Colitis
[Option ID = 36829]
Correct Answer :
Colitis
[Option ID = 36829]
3) If DNA is damaged, which of the following genes arrest cell cycle?
[Question ID = 9209]
1. Rb [Option ID = 36830]
2. p53 [Option ID = 36831]
3. Hedgehog receptor [Option ID = 36832]
4. p16 [Option ID = 36833]
Correct Answer :
p53 [Option ID = 36831]
4) Name the term where a single premRNA is processed into a number of products?
[Question ID = 9210]
1. Alternate splicing [Option ID = 36834]
2. Polyadenylation [Option ID = 36835]
3. Capping [Option ID = 36836]
4. Intron removal [Option ID = 36837]
Correct Answer :
Alternate splicing [Option ID = 36834]
5) What is the role of the sigma factor in transcription?
[Question ID = 9211]
1. Helicase action [Option ID = 36838]
2. Transcription initiation [Option ID = 36839]
3. Transcription elongation [Option ID = 36840]
4. Transcription termination [Option ID = 36841]
Correct Answer :
Transcription initiation [Option ID = 36839]
6) How many base pairs are there in every helical turn of WatsonCrick double helix model ?
[Question ID = 9212]
1. 32.3
[Option ID = 36842]
2. 20.6
[Option ID = 36843]
3. 14.0
[Option ID = 36844]
4. 10.4
[Option ID = 36845]
Correct Answer :
10.4
[Option ID = 36845]
7) A purified DNA sample of leaf contains 20% of guanine. Calculate the approximate percentage of purine residues?
[Question ID = 9213]
1. 30% [Option ID = 36846]
2. 40% [Option ID = 36847]
3. 50% [Option ID = 36848]
4. 60% [Option ID = 36849]
Correct Answer :
50% [Option ID = 36848]
8) How many numbers of replicon are found in E.coli?
[Question ID = 9214]
1. Five replicon [Option ID = 36850]
2. Two replicon [Option ID = 36851]
3. Single replicon [Option ID = 36852]
4. Multiple replicon [Option ID = 36853]
Correct Answer :
Single replicon [Option ID = 36852]
9) What is the role of snoRNA in eukaryotes?
[Question ID = 9215]
1. Chemical modification of rRNA [Option ID = 36854]
2. RNA splicing [Option ID = 36855]
3. Act as adaptor RNA [Option ID = 36856]
4. Forms component of the ribosome [Option ID = 36857]
Correct Answer :
Chemical modification of rRNA [Option ID = 36854]
10) Which of the following sequence of RNA is recognized by the small subunit of the ribosome?
[Question ID = 9216]
1. Rho utilization site [Option ID = 36858]
2. Downstream sequence [Option ID = 36859]
3. Upstream sequence [Option ID = 36860]
4. ShineDalgarno sequence [Option ID = 36861]
Correct Answer :
ShineDalgarno sequence [Option ID = 36861]
11) Which of the following acts as the major neurotransmitter in substantia nigra?
[Question ID = 9217]
1. Dopamine [Option ID = 36862]
2. Noradrenaline [Option ID = 36863]
3. Acetylcholine [Option ID = 36864]
4. Serotonin [Option ID = 36865]
Correct Answer :
Dopamine [Option ID = 36862]
12) The electrochemical equilibrium of a neuron can be calculated using which equation?
[Question ID = 9218]
1. Bernouli equation [Option ID = 36866]
2. HendersonHassalbach equation [Option ID = 36867]
3. Leyden's equation [Option ID = 36868]
4. Nernst equation [Option ID = 36869]
Correct Answer :
Nernst equation [Option ID = 36869]
13) Which is true about composition of Blood?
[Question ID = 9219]
1. Plasma55%, Protein/WBC1%, RBC 45% [Option ID = 36870]
2. Plasma50%, Protein/WBC3%, RBC 47% [Option ID = 36871]
3. Plasma45%, Protein/WBC4%, RBC 51% [Option ID = 36872]
4. Plasma35%, Protein/WBC2%, RBC 65% [Option ID = 36873]
Correct Answer :
Plasma55%, Protein/WBC1%, RBC 45% [Option ID = 36870]
14) Which of the following statement is TRUE about the ear and hearing?
[Question ID = 9220]
1. The range of human hearing is from 20 Hz to 20 kHz [Option ID = 36874]
2. Conductive hearing loss would be evident if a person had a similar degree of hearing loss for air conduction and bone conduction [Option ID =
36875]
3. The ear is most sensitive to frequencies between about 100 Hz and 300 Hz [Option ID = 36876]
4. The endolymph of the scala media is similar in composition to plasma [Option ID = 36877]
Correct Answer :
The range of human hearing is from 20 Hz to 20 kHz [Option ID = 36874]
15) During isotonic contraction of a skeletalmuscle fibre, the
[Question ID = 9221]
1. (1) Sarcomeres shorten
[Option ID = 36878]
2. (2) A bands shorten
[Option ID = 36879]
3. (3) I bands shorten
[Option ID = 36880]
4. (4) 1 and 3
[Option ID = 36881]
Correct Answer :
(4) 1 and 3
[Option ID = 36881]
16) The ratelimiting factor in causing blood coagulation is
[Question ID = 9222]
1. Prothrombin activator [Option ID = 36882]
2. Thrombin [Option ID = 36883]
3. Fibrinogen [Option ID = 36884]
4. Fibrin stabilizing factor [Option ID = 36885]
Correct Answer :
Prothrombin activator [Option ID = 36882]
17) In different types of tissue transplantations, the rate of graft rejection in decreasing order is
[Question ID = 9223]
1. Isograft > xenograft > allograft [Option ID = 36886]
2. Allograft > isograft > xenograft [Option ID = 36887]
3. Xenograft > autograft > allograft [Option ID = 36888]
4. Xenograft > allograft > isograft [Option ID = 36889]
Correct Answer :
Xenograft > allograft > isograft [Option ID = 36889]
18) Reticuloendothelial cells are present in
[Question ID = 9224]
1. Kidney, Spleen & Bone marrow [Option ID = 36890]
2. Lung, Spleen & Bone marrow [Option ID = 36891]
3. Liver, Spleen & Bone marrow [Option ID = 36892]
4. Intestine, Spleen & Bone marrow [Option ID = 36893]
Correct Answer :
Liver, Spleen & Bone marrow [Option ID = 36892]
19) The central foveal region in eye contains
[Question ID = 9225]
1. Only rods [Option ID = 36894]
2. Both rods and cones [Option ID = 36895]
3. Only cones [Option ID = 36896]
4. Neither rods nor cones [Option ID = 36897]
Correct Answer :
Only cones [Option ID = 36896]
20) Osmolality reflects
[Question ID = 9226]
1. 1 osmole of solute dissolved in each g of water [Option ID = 36898]
2. 1 osmole of solute dissolved in each kg of water [Option ID = 36899]
3. 1 osmole of solute dissolved in each L of water [Option ID = 36900]
4. 1 osmole of solute dissolved in each mL of water [Option ID = 36901]
Correct Answer :
1 osmole of solute dissolved in each kg of water [Option ID = 36899]
21) Methioninine Synthase is a ______dependent Enzyme
[Question ID = 9227]
1. Vitamin B3 [Option ID = 36902]
2. Vitamin B6 [Option ID = 36903]
3. Vitamin B12 [Option ID = 36904]
4. Vitamin B61 [Option ID = 36905]
Correct Answer :
Vitamin B12 [Option ID = 36904]
22) Hypertension of unknown etiology is represented by
[Question ID = 9228]
1. (1) Essential hypertension
[Option ID = 36906]
2. (2) Toxemia of pregnancy
[Option ID = 36907]
3. (3) Acute intermittent porphyria
[Option ID = 36908]
4. (4) 1 and 3
[Option ID = 36909]
Correct Answer :
(1) Essential hypertension
[Option ID = 36906]
23) Which of the following drugs is a ganglionic blocker?
[Question ID = 9229]
1. Prazosin [Option ID = 36910]
2. Ydralazine [Option ID = 36911]
3. Mecamylamine [Option ID = 36912]
4. Nicardipine [Option ID = 36913]
Correct Answer :
Mecamylamine [Option ID = 36912]
24) Dramatic decrease in systemic availability of a drug following oral administration is most likely due to
[Question ID = 9230]
1. Extreme drug instability at stomach pH [Option ID = 36914]
2. Hepatic "firstpass" effect [Option ID = 36915]
3. Drug metabolized by gut flora [Option ID = 36916]
4. Patient noncompliance [Option ID = 36917]
Correct Answer :
Hepatic "firstpass" effect [Option ID = 36915]
25) Type(s) of derivatives associated with phase II metabolic reactions include(s)
[Question ID = 9231]
1. (1) Glucuronide acid derivatives
[Option ID = 36918]
2. (2) Sulfation derivative
[Option ID = 36919]
3. (3) Neither
[Option ID = 36920]
4. (4) Both 1 and 2
[Option ID = 36921]
Correct Answer :
(4) Both 1 and 2
[Option ID = 36921]
26) Which of the following is the characteristic(s) of aspirin overdose?
[Question ID = 9232]
1. (1) Pyloric valve spasm
[Option ID = 36922]
2. (2) Acidity
[Option ID = 36923]
3. (3) Both 1 and 2
[Option ID = 36924]
4. (4) Neither
[Option ID = 36925]
Correct Answer :
(3) Both 1 and 2
[Option ID = 36924]
27) Which of the following is effective in the management of mild to moderate pain, when antiinflammatory action is not
necessary?
[Question ID = 9233]
1. Penicillamine [Option ID = 36926]
2. Sulfasalazine [Option ID = 36927]
3. Acetaminophen [Option ID = 36928]
4. Piroxicam [Option ID = 36929]
Correct Answer :
Acetaminophen [Option ID = 36928]
28) Risk differs from hazard in that, the risk
[Question ID = 9234]
1. Includes a consideration of the likelihood and severity [Option ID = 36930]
2. Is determined by toxicity studies [Option ID = 36931]
3. Can only be assessed by trained professionals [Option ID = 36932]
4. Is independent of exposure [Option ID = 36933]
Correct Answer :
Includes a consideration of the likelihood and severity [Option ID = 36930]
29) Which of the following drugs work by inhibiting the enzyme acetylcholinesterase?
[Question ID = 9235]
1. Neostigmine [Option ID = 36934]
2. Cyclizine [Option ID = 36935]
3. Montelukast [Option ID = 36936]
4. Fentanyl [Option ID = 36937]
Correct Answer :
Neostigmine [Option ID = 36934]
30) Which type of epilepsy is treated with Ethosuximide ?
[Question ID = 9236]
1. Tonicclonic seizures
[Option ID = 36938]
2. LennoxGastaut syndrome seizures
[Option ID = 36939]
3. Absence seizures
[Option ID = 36940]
4. All of these
[Option ID = 36941]
Correct Answer :
Absence seizures
[Option ID = 36940]
31) Which statement is true for competitive inhibition?
[Question ID = 9237]
1. In competitive inhibition, the addition of agonist shifts the dose response curve to the right [Option ID = 36942]
2. In competitive inhibition, the addition of agonist shifts the dose response curve to the left [Option ID = 36943]
3. Competitive inhibition may be irreversible [Option ID = 36944]
4. Competitive inhibition has the ability to activate the receptors [Option ID = 36945]
Correct Answer :
In competitive inhibition, the addition of agonist shifts the dose response curve to the right [Option ID = 36942]
32) The enzyme ultimately responsible for the formation of fibrin monomer is
[Question ID = 9238]
1. Plasminogen [Option ID = 36946]
2. Thrombin [Option ID = 36947]
3. Kininogen [Option ID = 36948]
4. Prothrombin [Option ID = 36949]
Correct Answer :
Thrombin [Option ID = 36947]
33) Paracrine secretion responsible for inhibiting gastric acid secretion is
[Question ID = 9239]
1. Somatostatin [Option ID = 36950]
2. Gastrin [Option ID = 36951]
3. Histamine [Option ID = 36952]
4. Enterogastrone [Option ID = 36953]
Correct Answer :
Somatostatin [Option ID = 36950]
34) The percentage of hemoglobin saturated with oxygen will increase, if
[Question ID = 9240]
1. The arterial pCO is increased
2
[Option ID = 36954]
2. The temperature is increased
[Option ID = 36955]
3. The arterial pO is increased
2
[Option ID = 36956]
4. The arterial pH is decreased
[Option ID = 36957]
Correct Answer :
The arterial pO is increased
2
[Option ID = 36956]
35) Which of the following statement about spermatogenesis is correct?
[Question ID = 9241]
1. Production and release of spermatozoa is cyclic [Option ID = 36958]
2. LH acts directly on sertoli cells to promote cell division [Option ID = 36959]
3. Sertoli cells are required for mitotic and meiotic activity of germ cells [Option ID = 36960]
4. Spermatogenesis requires continuous release of GnRH [Option ID = 36961]
Correct Answer :
Sertoli cells are required for mitotic and meiotic activity of germ cells [Option ID = 36960]
36) Plasma levels of calcium can be increased most rapidly by the direct action of parathyroid hormone on the
[Question ID = 9242]
1. Kidney [Option ID = 36962]
2. Bones [Option ID = 36963]
3. Thyroid gland [Option ID = 36964]
4. Intestine [Option ID = 36965]
Correct Answer :
Bones [Option ID = 36963]
37) Transcortical sensory aphasia is most likely to be associated with a lesion of
[Question ID = 9243]
1. The hippocampus [Option ID = 36966]
2. The temporal lobe [Option ID = 36967]
3. The parietal lobe [Option ID = 36968]
4. The limbic system [Option ID = 36969]
Correct Answer :
The temporal lobe [Option ID = 36967]
38) When the person is dehydrated, hypotonic solution is found in the
[Question ID = 9244]
1. Glomerular filtrate [Option ID = 36970]
2. Loop of Henle [Option ID = 36971]
3. Cortical collecting tubule [Option ID = 36972]
4. Distal collecting duct [Option ID = 36973]
Correct Answer :
Loop of Henle [Option ID = 36971]
39) The principal steroid secreted by the fetal adrenal cortex is
[Question ID = 9245]
1. Dehydroepiandrosterone [Option ID = 36974]
2. Corticosterone [Option ID = 36975]
3. Cortisol [Option ID = 36976]
4. Pregnenolone [Option ID = 36977]
Correct Answer :
Dehydroepiandrosterone [Option ID = 36974]
40) Vaccination is a form of
[Question ID = 9246]
1. (1) Active immunization
[Option ID = 36978]
2. (2) Passive immunization
[Option ID = 36979]
3. (3) Both
[Option ID = 36980]
4. (4) Neither
[Option ID = 36981]
Correct Answer :
(3) Both
[Option ID = 36980]
41) Which of the following diseases is associated with angiogenesis?
[Question ID = 9247]
1. Diabetes [Option ID = 36982]
2. Cancer [Option ID = 36983]
3. Asthma [Option ID = 36984]
4. AIDS [Option ID = 36985]
Correct Answer :
Cancer [Option ID = 36983]
42) The F1 particles of mitochondria are
[Question ID = 9248]
1. A type of ribosome that synthesizes mitochondrial proteins [Option ID = 36986]
2. A structural component of the mitochondrial outer membrane [Option ID = 36987]
3. An enzyme complex that synthesizes ATP during respiration [Option ID = 36988]
4. Storage complex for calcium phosphate in the mitochondria [Option ID = 36989]
Correct Answer :
An enzyme complex that synthesizes ATP during respiration [Option ID = 36988]
43) Rheumatoid arthritis is an example of
[Question ID = 9249]
1. Type I hypersensitive reaction [Option ID = 36990]
2. Type II hypersensitive reaction [Option ID = 36991]
3. Type III hypersensitive reaction [Option ID = 36992]
4. Type IV hypersensitive reaction [Option ID = 36993]
Correct Answer :
Type III hypersensitive reaction [Option ID = 36992]
44) Cystic fibrosis transmembrane conductance regulator (CFTR) is an ion channel specific for
[Question ID = 9250]
1. K+
[Option ID = 36994]
2. Na+
[Option ID = 36995]
3. Cl-
[Option ID = 36996]
4. H+
[Option ID = 36997]
Correct Answer :
Cl-
[Option ID = 36996]
45) Under which phase of bacterial growth bacteria increases in size but do not divide?
[Question ID = 9251]
1. Lag [Option ID = 36998]
2. Log [Option ID = 36999]
3. Stationary phase [Option ID = 37000]
4. Death phase [Option ID = 37001]
Correct Answer :
Lag [Option ID = 36998]
46) Which of the following features of HIV make it different from other members of this family?
[Question ID = 9252]
1. HIV uses reverse transcriptase to convert its RNA genome into cDNA
[Option ID = 37002]
2. HIV infects human cells that are CD4+
[Option ID = 37003]
3. HIV is enveloped
[Option ID = 37004]
4. HIV encoded a number of small proteins such as tat and rev
[Option ID = 37005]
Correct Answer :
HIV uses reverse transcriptase to convert its RNA genome into cDNA
[Option ID = 37002]
47) Sulfur oxidizing bacteria belongs to
[Question ID = 9253]
1. Chemoheterotroph [Option ID = 37006]
2. Chemolithoautotroph [Option ID = 37007]
3. Chemolithoheterotroph [Option ID = 37008]
4. Photolithoautotroph [Option ID = 37009]
Correct Answer :
Chemolithoautotroph [Option ID = 37007]
48) RNA as a genetic material is found in, which of the following organism?
[Question ID = 9254]
1. Plasmodium
[Option ID = 37010]
2. Staphylococcus aureus
[Option ID = 37011]
3. Schizosaccharomycescerevisiae
[Option ID = 37012]
4. Poliovirus
[Option ID = 37013]
Correct Answer :
Poliovirus
[Option ID = 37013]
49) Severe Acute Respiratory Syndrome (SARS) is
[Question ID = 9255]
1. Caused by variant of Pneumococcus pneumonia
[Option ID = 37014]
2. Caused by a variant of common cold virus
[Option ID = 37015]
3. An acute form of asthma
[Option ID = 37016]
4. Related to all of these
[Option ID = 37017]
Correct Answer :
Caused by a variant of common cold virus
[Option ID = 37015]
50) Viruses can be cultured in
[Question ID = 9256]
1. (1) Chemically defined media as that used for bacteria
[Option ID = 37018]
2. (2) Living system only
[Option ID = 37019]
3. (3) Nonliving matter also
[Option ID = 37020]
4. (4) Both 1 and 2
[Option ID = 37021]
Correct Answer :
(2) Living system only
[Option ID = 37019]
51) Which of the following fungi is a rich source of protein?
[Question ID = 9257]
1. Mushroom [Option ID = 37022]
2. Aspergillus [Option ID = 37023]
3. Penicillum [Option ID = 37024]
4. Mucor [Option ID = 37025]
Correct Answer :
Mushroom [Option ID = 37022]
52) Streptomycin is obtained from
[Question ID = 9258]
1. Streptomyces capreolus [Option ID = 37026]
2. Streptomyces vanezulae [Option ID = 37027]
3. Streptomyces orchidaceus [Option ID = 37028]
4. Streptomyces griseus [Option ID = 37029]
Correct Answer :
Streptomyces griseus [Option ID = 37029]
53) Which cells secrete Tissue plasminogen Activator (tPA)?
[Question ID = 9259]
1. Erythrocytes [Option ID = 37030]
2. Platelets [Option ID = 37031]
3. Endothelial cells [Option ID = 37032]
4. Neutrophils [Option ID = 37033]
Correct Answer :
Endothelial cells [Option ID = 37032]
54) Which trace element is most useful in wound healing?
[Question ID = 9260]
1. Manganese [Option ID = 37034]
2. Magnesium [Option ID = 37035]
3. Selenium [Option ID = 37036]
4. Zinc [Option ID = 37037]
Correct Answer :
Zinc [Option ID = 37037]
55) What type of mutation occurs in sickle cell anemia?
[Question ID = 9261]
1. (1) Missense
[Option ID = 37038]
2. (2) Point mutation
[Option ID = 37039]
3. (3) Both 1 and 2
[Option ID = 37040]
4. (4) Nonsense
[Option ID = 37041]
Correct Answer :
(3) Both 1 and 2
[Option ID = 37040]
56) Which of the following enzyme is lactamase inhibitor?
[Question ID = 9262]
1. Clavulanic acid
[Option ID = 37042]
2. Adipic acid
[Option ID = 37043]
3. Lysergic acid
[Option ID = 37044]
4. Salicyclic acid
[Option ID = 37045]
Correct Answer :
Clavulanic acid
[Option ID = 37042]
57) A twelveyearold boy measures his height against a small tree by hammering a nail at his height. The boy is 4 feet tall
and the tree is 8 feet tall. The boy grows into a 6 feet tall man of 22 and comes back to the tree which has been growing
by a feet every 2 years. When he comes back at 22 years and later after 42 years, what is the distance of the nail from
the ground?
[Question ID = 9263]
1. 15 & 25 feet [Option ID = 37046]
2. 4 & 4 feet [Option ID = 37047]
3. 19 & 29 feet [Option ID = 37048]
4. 17 & 27 [Option ID = 37049]
Correct Answer :
4 & 4 feet [Option ID = 37047]
58) Recessive inheritance is inferred from
[Question ID = 9264]
1. (1) Phenotype
[Option ID = 37050]
2. (2) Genotype
[Option ID = 37051]
3. (3) Both (1) and (2)
[Option ID = 37052]
4. (4) Only (1)
[Option ID = 37053]
Correct Answer :
(4) Only (1)
[Option ID = 37053]
59) Recombination frequency is a measure of distance between two genes. It indicates
[Question ID = 9265]
1. Absolute distance in terms of base pairs [Option ID = 37054]
2. Position of the gene from the centromere [Option ID = 37055]
3. Relative distance between the two genes [Option ID = 37056]
4. How often meiosis occurs [Option ID = 37057]
Correct Answer :
Relative distance between the two genes [Option ID = 37056]
60) A Test cross in a model organism is carried out between
[Question ID = 9266]
1. A heterozygote and recessive homozygote [Option ID = 37058]
2. Two heterozygotes [Option ID = 37059]
3. A heterozygote and dominant homozygote [Option ID = 37060]
4. Offspring and parent both heterozygous [Option ID = 37061]
Correct Answer :
A heterozygote and recessive homozygote [Option ID = 37058]
61) Linkage between loci is
[Question ID = 9267]
1. Confirming Mendel's laws of inheritance [Option ID = 37062]
2. A deviation from Mendel's Laws of inheritance [Option ID = 37063]
3. Reflected in the Law of independent assortment [Option ID = 37064]
4. Because of recombination [Option ID = 37065]
Correct Answer :
A deviation from Mendel's Laws of inheritance [Option ID = 37063]
62) For a mutation to be stably inherited
[Question ID = 9268]
1. It should occur in all somatic cells [Option ID = 37066]
2. It should occur on both the homologues in a diploid [Option ID = 37067]
3. It should occur in gametes [Option ID = 37068]
4. It should be random [Option ID = 37069]
Correct Answer :
It should occur in gametes [Option ID = 37068]
63) Which of the following statements is untrue?
[Question ID = 9269]
1. Desolvation is an energy expensive process that involves the removal of water from polar functional groups prior to a drug binding to its binding
site [Option ID = 37070]
2. Water molecules surrounding a hydrophobic region of a drug form an ordered layer of molecules with low entropy [Option ID = 37071]
3. Interaction between the non polar regions of a drug and the non polar regions of a target require the removal of an ordered water coat and
represents a gain in binding energy due to increased entropy [Option ID = 37072]
4. An increase in entropy results in a greater positive value of G and a greater chance of binding [Option ID = 37073]
Correct Answer :
An increase in entropy results in a greater positive value of G and a greater chance of binding [Option ID = 37073]
64) Which secondary messenger is generated as a result of the action of nitrous oxide?
[Question ID = 9270]
1. GTP [Option ID = 37074]
2. Cyclic GMP [Option ID = 37075]
3. ATP [Option ID = 37076]
4. Cyclic AMP [Option ID = 37077]
Correct Answer :
Cyclic GMP [Option ID = 37075]
65) Which of the following is not a Gprotein coupled receptor?
[Question ID = 9271]
1. The muscarinic receptor [Option ID = 37078]
2. The glycine receptor [Option ID = 37079]
3. The adrenergic receptor [Option ID = 37080]
4. The glutamate receptor [Option ID = 37081]
Correct Answer :
The glycine receptor [Option ID = 37079]
66) Which of the following is not a typical messenger for a tyrosine kinase linked receptor?
[Question ID = 9272]
1. Insulin [Option ID = 37082]
2. Acetylcholine [Option ID = 37083]
3. Growth factors [Option ID = 37084]
4. Cytokines [Option ID = 37085]
Correct Answer :
Acetylcholine [Option ID = 37083]
67) Which of the following statements best explains the action of lithium salts in treating manic depressive illness?
[Question ID = 9273]
1. They inhibit adenylatecyclase [Option ID = 37086]
2. They inhibit phospholipase C [Option ID = 37087]
3. They inhibit protein kinase C [Option ID = 37088]
4. They inhibit a glycogen synthase kinase [Option ID = 37089]
Correct Answer :
They inhibit a glycogen synthase kinase [Option ID = 37089]
68) Which of the following terms best describes a drug that binds to an active site and inhibits the enzyme, and where
inhibition decreases when substrate concentration is increased?
[Question ID = 9274]
1. Allosteric inhibitor
[Option ID = 37090]
2. Irreversible inhibitor
[Option ID = 37091]
3. Reversible inhibitor
[Option ID = 37092]
4. All of these
[Option ID = 37093]
Correct Answer :
Reversible inhibitor
[Option ID = 37092]
69) Which of the following is not used as a measure of enzyme activity?
[Question ID = 9275]
1. EC50
[Option ID = 37094]
2. Ki
[Option ID = 37095]
3. IC50
[Option ID = 37096]
4. Log P
[Option ID = 37097]
Correct Answer :
Log P
[Option ID = 37097]
70) Which of the following terms applies to the maximum biological effect resulting from a drug binding to its target?
[Question ID = 9276]
1. Affinity [Option ID = 37098]
2. Efficacy [Option ID = 37099]
3. Potency [Option ID = 37100]
4. Stability [Option ID = 37101]
Correct Answer :
Efficacy [Option ID = 37099]
71) Suckling stimulus by the infant during nursing maintains lactation by
[Question ID = 9277]
1. Increasing the secretion of oxytocin [Option ID = 37102]
2. Increasing the secretion of prolactin [Option ID = 37103]
3. Increasing the secretion of LH and FSH [Option ID = 37104]
4. Increasing the secretion of oxytocin and prolactin [Option ID = 37105]
Correct Answer :
Increasing the secretion of oxytocin and prolactin [Option ID = 37105]
72) Which one of the following is not a heme protein ?
[Question ID = 9278]
1. Catalase [Option ID = 37106]
2. Cytochrome oxidase [Option ID = 37107]
3. Microsomal P450 drug oxidizing system [Option ID = 37108]
4. Protein Kinase C [Option ID = 37109]
Correct Answer :
Protein Kinase C [Option ID = 37109]
73) A shift in the oxygen Haemoglobin Dissociation curve to the right occurs in
[Question ID = 9279]
1. Hypothermia [Option ID = 37110]
2. Carboxyhaemoglobin [Option ID = 37111]
3. Fetal hemoglobinS [Option ID = 37112]
4. An increase in the 2, 3Bisphosphoglycerate (2, 3BPG) [Option ID = 37113]
Correct Answer :
An increase in the 2, 3Bisphosphoglycerate (2, 3BPG) [Option ID = 37113]
74) The concentration of agar to obtain semi solid media is
[Question ID = 9280]
1. 1.520%
[Option ID = 37114]
2. 0.5% or less
[Option ID = 37115]
3. >10%
[Option ID = 37116]
4. >10% but <20%
[Option ID = 37117]
Correct Answer :
0.5% or less
[Option ID = 37115]
75) Bleomycin is a drug for the treatment of
[Question ID = 9281]
1. Cancer [Option ID = 37118]
2. Atherosclerosis [Option ID = 37119]
3. Hypertension [Option ID = 37120]
4. Hyperlipidemia [Option ID = 37121]
Correct Answer :
Cancer [Option ID = 37118]
76) Emblica officinalis extract is used widely as an
[Question ID = 9282]
1. Antihistamine [Option ID = 37122]
2. Antioxidant [Option ID = 37123]
3. Antipyretic [Option ID = 37124]
4. Analgesic [Option ID = 37125]
Correct Answer :
Antioxidant [Option ID = 37123]
77) The vitamin that contains cobalt is
[Question ID = 9283]
1. Vitamin B12 [Option ID = 37126]
2. Vitamin C [Option ID = 37127]
3. Vitamin E [Option ID = 37128]
4. Vitamin k [Option ID = 37129]
Correct Answer :
Vitamin B12 [Option ID = 37126]
78) The first virus shown to cause disease was
[Question ID = 9284]
1. Polio [Option ID = 37130]
2. Hepatitis [Option ID = 37131]
3. Tobacco mosaic virus [Option ID = 37132]
4. Potato blight [Option ID = 37133]
Correct Answer :
Tobacco mosaic virus [Option ID = 37132]
79) Which of the following is used for the proper maintenance and preservation of pure cultures?
[Question ID = 9285]
1. Periodic transfer to fresh media
[Option ID = 37134]
2. Preservation by overlaying cultures with mineral oil
[Option ID = 37135]
3. Preservation by lyophilization
[Option ID = 37136]
4. All of these
[Option ID = 37137]
Correct Answer :
All of these
[Option ID = 37137]
80) Name of the mosquito responsible for transmitting chikungunya fever is
[Question ID = 9286]
1. Culex mosquito [Option ID = 37138]
2. Anopheles mosquito [Option ID = 37139]
3. Aedes mosquito [Option ID = 37140]
4. Uranotaenia mosquito [Option ID = 37141]
Correct Answer :
Aedes mosquito [Option ID = 37140]
81) The half life period of a radioisotope is 2 hours. After 6 hours, the fraction of the initial quantity of the isotope left
behind will be
[Question ID = 9287]
1. 1/6 [Option ID = 37142]
2. 1/3 [Option ID = 37143]
3. 1/8 [Option ID = 37144]
4. 1/4 [Option ID = 37145]
Correct Answer :
1/8 [Option ID = 37144]
82) PCl reacts with water to yield
3
[Question ID = 9288]
1. H3PO4 [Option ID = 37146]
2. H3PO3 [Option ID = 37147]
3. HOCl [Option ID = 37148]
4. POCl3 [Option ID = 37149]
Correct Answer :
H3PO3 [Option ID = 37147]
83) The bond angle 120 for BF
0
and 109.30
3
for CH accounts for
4
[Question ID = 9290]
1. sp , tetrahedral and sp
2
, trigonal
3
[Option ID = 37154]
2. sp , trigonal and sp
2
, trigonal
3
[Option ID = 37155]
3. sp , tetrahedral and sp
2
, tetrahedral
3
[Option ID = 37156]
4. sp , trigonal and sp
2
, tetrahedral
3
[Option ID = 37157]
Correct Answer :
sp , trigonal and sp
2
, tetrahedral
3
[Option ID = 37157]
84) Ultraviolet and visible radiation interacts with matter causing electronic transitions (promotion ofelectrons from the
ground state to a high energy state). Which of the following transition falls in UVVis range?
[Question ID = 9291]
1. * (pi to pi star transition) and n * (n to pi star transition) [Option ID = 37158]
2. * (sigma to sigma star transition) and n* (n to sigma star transition) [Option ID = 37159]
3. * (sigma to sigma star transition) and * (pi to pi star transition) [Option ID = 37160]
4. n* (n to sigma star transition) and n * (n to pi star transition) [Option ID = 37161]
Correct Answer :
* (pi to pi star transition) and n * (n to pi star transition) [Option ID = 37158]
85) Which of the following statements is not true?
[Question ID = 9293]
1. Pyrrole contains 6 electrons [Option ID = 37166]
2. Pyrrole is an aromatic molecule [Option ID = 37167]
3. Pyrrole is a planar molecule [Option ID = 37168]
4. Pyrrole contains 6 membered N containing heterocyclic ring [Option ID = 37169]
Correct Answer :
Pyrrole contains 6 membered N containing heterocyclic ring [Option ID = 37169]
86) Fischer Tropsch process is
[Question ID = 9294]
1. Decomposition of an alkane in the absence of air [Option ID = 37170]
2. Process to convert kerosene into gasoline [Option ID = 37171]
3. A process to obtain synthetic fuel [Option ID = 37172]
4. Conversion of straight chain alkanes into branchedchain alkanes and aromatic hydrocarbons [Option ID = 37173]
Correct Answer :
A process to obtain synthetic fuel [Option ID = 37172]
87) Which one of the following product is not obtained from primary amine?
[Question ID = 9295]
1. Imine [Option ID = 37174]
2. Enamine [Option ID = 37175]
3. Hydrazone [Option ID = 37176]
4. Oxime [Option ID = 37177]
Correct Answer :
Enamine [Option ID = 37175]
88) Which one of the following is correct statement?
[Question ID = 9296]
1. The electronegative character decreases in the same group moving down the periodic table
[Option ID = 37178]
2. The basic character decreases moving from left to right in periodic table
[Option ID = 37179]
3. The ionization potential increases moving from left to right in periodic table
[Option ID = 37180]
4. All of these
[Option ID = 37181]
Correct Answer :
All of these
[Option ID = 37181]
89) Which one of the following rearrangement involves the conversion of oxime to amine?
[Question ID = 9297]
1. Beckmann [Option ID = 37182]
2. Curtius [Option ID = 37183]
3. Hofmann [Option ID = 37184]
4. WagnerMeerwein [Option ID = 37185]
Correct Answer :
Beckmann [Option ID = 37182]
90) The product of the reaction of 1, 3 butadiene and ethylene is
[Question ID = 9298]
1. Hexane [Option ID = 37186]
2. Cyclohexane [Option ID = 37187]
3. Hexene [Option ID = 37188]
4. Cyclohexene [Option ID = 37189]
Correct Answer :
Cyclohexene [Option ID = 37189]
91) LiAlH is used for one of the following reactions
4
[Question ID = 9299]
1. Oxidation [Option ID = 37190]
2. Reduction [Option ID = 37191]
3. Condensation [Option ID = 37192]
4. Substitution [Option ID = 37193]
Correct Answer :
Reduction [Option ID = 37191]
92) Which of the following violates the octet rule?
[Question ID = 9300]
1. PCl3
[Option ID = 37194]
2. CBr4
[Option ID = 37195]
3. OF2
[Option ID = 37196]
4. AsF5
[Option ID = 37197]
Correct Answer :
AsF5
[Option ID = 37197]
93) In which one of the following species does the transition metal ion have d electronic configuration?
3
[Question ID = 9301]
1. [Cr(NH3)6]3+
[Option ID = 37198]
2. [Co(OH2)6]2+
[Option ID = 37199]
3. [CoF6]3
[Option ID = 37200]
4. [Fe(CN)6]3
[Option ID = 37201]
Correct Answer :
[Cr(NH3)6]3+
[Option ID = 37198]
94) Hydrolysis of a fat molecule would yield
[Question ID = 9302]
1. Water and an alkene [Option ID = 37202]
2. Ethanol and propionic acid [Option ID = 37203]
3. Glycerol and soap [Option ID = 37204]
4. A trimester of glycerol with fatty acid [Option ID = 37205]
Correct Answer :
Glycerol and soap [Option ID = 37204]
95) In the Hofmann preparation of primary amine, the starting compound is
[Question ID = 9304]
1. Carboxylic acid [Option ID = 37210]
2. Ketone [Option ID = 37211]
3. Amide [Option ID = 37212]
4. Halide [Option ID = 37213]
Correct Answer :
Amide [Option ID = 37212]
96) Which of the following IS TRUE about sucrose?
[Question ID = 9305]
1. It is not a reducing sugar [Option ID = 37214]
2. It reduces Fehling's solution [Option ID = 37215]
3. It forms an oxime [Option ID = 37216]
4. It forms an osazone [Option ID = 37217]
Correct Answer :
It is not a reducing sugar [Option ID = 37214]
97) The metal present in Wilkinson's catalyst is
[Question ID = 9306]
1. Platinum [Option ID = 37218]
2. Iron [Option ID = 37219]
3. Copper [Option ID = 37220]
4. Rhodium [Option ID = 37221]
Correct Answer :
Rhodium [Option ID = 37221]
98) Complete the following reaction. Na23
1
1
11
+ H
1
? + n
0
[Question ID = 9308]
1.
Mn23
12
[Option ID = 37226]
2.
M 23
12
g
[Option ID = 37227]
3.
C23
12
[Option ID = 37228]
4. None of these
[Option ID = 37229]
Correct Answer :
M 23
12
g
[Option ID = 37227]
99) Name the following reaction
[Question ID = 9309]
1. Perkin Reaction
[Option ID = 37230]
2. Aldol condensation
[Option ID = 37231]
3. Dieckmann condesation
[Option ID = 37232]
4. None of these
[Option ID = 37233]
Correct Answer :
Dieckmann condesation
[Option ID = 37232]
100) Which of the following IS NOT aromatic?
[Question ID = 9310]
1. I [Option ID = 37234]
2. II [Option ID = 37235]
3. III [Option ID = 37236]
4. IV [Option ID = 37237]
Correct Answer :
III [Option ID = 37236]
This post was last modified on 27 December 2020