1. Which among the following is an example for cytokinin ?
(A) Phenylacetic acid
(B) Phosphon D
(C) Dihydrozeatin
(D) 2-methoxy-3, 6-dichlorobenzoic acid
Ans:(C) Dihydrozeatin
2. The active site of Rubisco contains _____ ion.
(A) Magnesium (B) Potassium (C) Copper (D) Zinc
Ans: (A) Magnesium
3. Which is the oldest carbon-14 dated seed that has grown into viable plant ?
(A) Nelumbo nucifera (B) Archaefructus liaoningensis
(C) Michelia champaka (D) Silene stenophylla.
Ans: (D) Silene stenophylla.
4. C-4 epimer of D-glucose is _____
(A) Mannose (B) Arabinose (C) Allose (D) Galactose
Ans:(D) Galactose
5. Match the following correctly :
Set – A Set – B
(a) non-polar aminoacid i. lysine
(b) aromatic aminoacid ii. proline
(c) positively charged aminoacid iii. cysteine
(d) polar aminoacid iv. tryptophan
(A) a-ii, b-iv, c-i, d-iii
(B) a-iii,b-i,c-iv, d-ii
(C) a-ii; b-iv, c-iii, d-i
(D) a-iv, b-iii, c-ii, d-i.
Ans:(A) a-ii, b-iv, c-i, d-iii
6. Which among the following is a molybdenum requiring enzyme ?
(A) Urease (B) Cytochrome oxidase
(C) Dinitrogenase (D) Pyruvate kinase
Ans:(C) Dinitrogenase
7. Which among the following is used for polymerization agent in PAGE ?
(A) Ammonium persulfate (B) Sodium dodycel supfate
(C) Mercaptoethanol (D) Sodium hydroxide
Ans:(A) Ammonium persulfate
8. Smallest genome size is seen in _____
(A) E. coll (B) Helicobater pylori
(C) Carsonella ruddii (D) Saccharomyces cerevisiae
Ans:(C) Carsonella ruddii
9. Which human chromosome has the highest number of genes ?
(A) X chromosome (B) Y chromosome
(C) Chromosome 1 (D) Chromosome 8
Ans:(C) Chromosome 1
10. A human with a karyotype of 48, XXXY is an example for _____
(A) Turner’s syndrome (B) Klinefelter’s syndrome
(C) Down’s syndrome (D) Triplo X
11. Match the following correctly :
Set – A Set – B
(a) Fumonisin i. Aspergillus falvus
(b) Aflatoxin ii. Claviceps purpurea
(c) Ergot toxin iii Amanita phalloides
(d) Mushroom toxin iv. Fusarium verticillioides
(A) a-ii, b-iv, c-i, d-iii
(B) a-iv,b-i,c-ii, d-iii
(C) a-ii, b-iv, c-iii, d-i
(D) a-iv, b-iii, c-ii, d-i.
Ans:(B) a-iv,b-i,c-ii, d-iii
12. Pick out the wrong statement.
(A) Clamp connections are seen in Basidiomycota
(B) Dolipore septum is present in Basidiomycota
(C) Fairy rings are formed by Agaricus
(D) Genus Pilobolus belongs to Asomycota
Ans: (D) Genus Pilobolus belongs to Asomycota
13. Find out the correct statement about lichens.
(A) Cladonia is an example for foliose lichen
(B) Isidia is an asexual reproductive structure
(C) Soredia are sexual reproductive structures
(D) Cyanophycophilous lichen has green algae as phycobiont
Ans: (B) Isidia is an asexual reproductive structure
14. Which among the following satements is correct about algae ?
(A) Branched filaments are seen in Zygnema
(B) Oedogonia thallus is branched
(C) Branched thallus is present in Cladophora
(D) Thallus is branched in Ulothrix.
Ans: (C) Branched thallus is present in Cladophora
15. Match the following.
Set – A Set – B
(a) Hormogonia i. Polysiphonia
(b) Amylum stars ii. Lyngbya
(c) Tetraspores iii. Vaucheria
(d) Synzoospore iv. Chara
(A) a-ii, b-iii, c-i, d-iv
(B) a-ii,b-iv,c-i, d-iii
(C) a-ii, b-iv, c-iii, d-i
(D) a-iv, b-iii; c-i, d-ii.
Ans:(B) a-ii,b-iv,c-i, d-iii
16. Heterospory is present in _____
(A) Isoetus
(B) Azolla
(C) Selaginella
(D) All the above
Ans:(D) All the above
17. Which among the following is the commonly cultivated ‘Maidenhair fern’ ?
(A) Adiantum (B) Pteridium (C) Gleichenia (D) Equisetum
Ans:(A) Adiantum
18. Which among the following produces lnterferon- (IFN-) ?
(A) Leucocytes (B) Sensitized T cells (C) Fibroblasts (D) Natural killer cells
Ans: (C) Fibroblasts
19. Polyembrony is found in
(A) Citrus (B) Maize (C) Kiwi (D) All the above
Ans:(D) All the above
20. Which among the following is an example for crop species introduced in India ?
(A) Cabbage (B) Cauliflower (C) Hevea brasiliensis (D) All the above.
Ans:(D) All the above
21. Pick out the wrong statement :
(A) Selfing reduces homozygosity
(B) Inbreeding depression is absent on self pollinated crops
(C) Heterosis is the superiority of F1 hybrids over both of its parents
(D) Selfing decreases heterozygosity
Ans:(A) Selfing reduces homozygosity
22. The new plant species from West Bengal named after former President of India Dr APJ
Abdul Kalam belongs to the genera _____
(A) Oryza (B) Drypetes
(C) Santalam (D) Eriocaulon
Ans:(B) Drypetes
23. Which among the following is not related with family Orchidaceae ?
(A) Resupination (B) Follicle
(C) Pollinium (D) Rostellum
Ans: (B) Follicle
24. Which Indian state has got highest area under mangrove forest ?
(A) West Bengal (B) Kerala
(C) Gujarat (D) Tamil Nadu
Ans: (A) West Bengal
25. The height in cm of 11 plants are given below. Which is the median height ?
16, 17, 10, 14, 20, 8, 22, 31, 5, 10, 13.
(A) 10 (B) 15
(C) 14 (D) 17
Ans:(C) 14
26. Covid-19 genome is _____
(A) Single stranded DNA
(B) Single stranded RNA
(C) Double stranded RNA
(D) Double stranded DNA
Ans:(B) Single stranded RNA
27. Match the following :
Set – A Set – B
(a) Western blotting i. DNA
(b) Southern blotting ii. Protein
(c) Northern blotting iii. PCR
(d) Taq polymerase iv. RNA
(A) a-ii, b-i, c-iv, d-iii
(B) a-ii, b-iv, c-iii, d-i
(C) a-ii, b-iv, c-i, d-iii
(D) a-iv, b-iii, c-i, d-ii
Ans: (A) a-ii, b-i, c-iv, d-iii
28. Which among the following points is not correct about bryophytes ?
(A) Air chambers and air pores are absent in Anthocerotopsida
(B) The archesporium is endothecial in origin in Hepaticopsida
(C) Sporogenous tissue is amphithecial in origin in Anthocerotopsida
(D) Oblique septa is absent in the rhizoids of bryopsida
29. Which of the following families have anomocytic type of stomata ?
(A) Rubiaceae
(B) Cruciferae
(C) Ranunculaceae
(D) Caryophyllaceae
Ans:(C) Ranunculaceae
30. Find out the neutral stain.
(A) Safranin
(B) Giemsa stain
(C) Methyl blue
(D) Ferric sulphate
Ans:(B) Giemsa stain
31. Find out the wrong statement about geological time scale from the following :
(A) Holocene epoch belongs to Quaternary period
(B) Cretaceous period belongs to Mesozoic era
(C) Devonian period belongs to Palaeozoic era
(D) Silurian period is belongs to Mesozoic era
Ans:(D) Silurian period is belongs to Mesozoic era
32. Find out the correct answer related with Trichopus zeylanicus from the following statements :
i. It has anti-fatique property
ii. Fruits and leaves are used
iii. It belongs to Dioscoreaceae family
iv. It is used by Kani tribes of Western Ghats.
(A) Only i & iv correct.
(B) i, ii, iii & iv correct
(C) i, iii & iv only correct
(D) ii & iv only correct
Ans:(B) i, ii, iii & iv correct
33. Which among the following is not the main goal of the Convention on Biological
Diversity (CBD) ?
(A) Eliminating hunger and improving nutrition and standards of living by increasing agricultural productivity.
(B) Share any benefits from genetic diversity equally
(C) Use of diversity without destroying it
(D) To protect biodiversity
Ans:(A) Eliminating hunger and improving nutrition and standards of living by increasing agricultural productivity.
34. Match the following :
Set – A Set – B
(a) Chilgoza i. Tumboa
(b) Sagopalm ii. Pinus gerardiana
(c) Maidenhairtree iii Cycas revoluta
(d) Welwitschia iv. Ginkgo biloba
(A) a-iv, b-iii, c-ii, d-i
(B) a-iv, b-iii, c-i, d-ii
(C) a-ii,b-iii,c-iv; d-i
(D) a-iii, b-i; c-iv, d-ii
Ans:(C) a-ii,b-iii,c-iv; d-i
35. Which bacteria produce the antibiotic Chloramphenicol ?
(A) Streptomyces venezuelae
(B) Streptomyces fradiae
(C) Streptomyces rimosus
(D) Pencillium sp.
Ans:(A) Streptomyces venezuelae
36. Which among the following is the binomial for black gram ?
(A) Vigna radiata
(B) Vigna unguiculata
(C) Vigna mungo
(D) Cajanus cajan
Ans:(C) Vigna mungo
37. Perianth in Poaceae is represented by
(A) Lema
(B) Lodicules
(C) Palea
(D) glume
Ans:(B) Lodicules
38. DNA topoisomerase V is reported in
(A) Bacillus subtilis
(B) Methanopyrus kandleri
(C) Thiobacillus denitrificans
(D) Micrococcus luteus
Ans:(B) Methanopyrus kandleri
39. Which among the following is a stop codon in vertebrate mitochondrial DNA ?
(A) UUU
(B) AGA
(C) UGA
(D) GUC
Ans:(B) AGA
40. Find out the advantage of haploids from the following.
(A) High vigour
(B) Mutations can be easily detected
(C) Sterility
(D) Expression of dominant alleles
Ans:B) Mutations can be easily detected
41. Choose the name of chemicals used in somatic hybridization technique.
(A) PEG
(B) Hemicellulase
(C) Sorbitol
(D) All the above
Ans:(D) All the above
42. Who among the following coined the term bioinformatics ?
(A) Younan Nowzardan
(B) Pauline Hogeweg
(C) David J Lipman
(D) M Gromiha
Ans:(B) Pauline Hogeweg
43. Which among the following is a nucleotide data base ?
(A) DDBJ (B) PDB (C) BLAST (D) Pylip
Ans:(A) DDBJ
44. In which plant corm is present ?
(A) Sweet potato (B) Cassava (C) Coleus (D) Gladiolus
Ans:(D) Gladiolus
45. The grass species Agrostis tenuis is an example for _____ speciation.
(A) Sympatric speciation
(B) Allopatric speciation
(C) Parapatric speciation
(D) Peripatric speciation
Ans:(C) Parapatric speciation
46. Choose a stenopalynous plant family from the following :
(A) Graminieae (B) Verbenaceae (C) Rubiaceae (D) Asteraceae
Ans:(A) Graminieae
47. Black dammer is obtained from
(A) Vateria indica (B) Pterocarpus marsupium (C) Pterocarpus santalinus (D) Canarium strictum
Ans: (D) Canarium strictum
48. The chromosomes are arranged at the metaphase plate by a process called-
(A) Congression (B) Centromere splitting
(C) Microtubule pulling (D) Microtubule pushing
Ans:(A) Congression
49. Which among the following is a microfilament ?
(A) Acidic keratins (B) Desmin
(C) Vimentin (D) Actin
Ans:(D) Actin
50. What is the causative organism for soft rot of ginger ?
(A) Phytophthora capsici (B) Hemileia vastatrix
(C) Pythium aphanidermatum (D) Phytophthora palmivora
51. Which of the following hormones affect Na+, Cl–, Ca2+ and water reabsorption and K+
secretion by renal tubules ?
(i) Angiotensin II
(ii) Aldosterone
(iii) ADH
(iv) Atrial natriuretic peptide
(v) Thyroid hormone
(vi) Parathyroid hormone
(A) (ii), (iii), (iv), (v) & (vi) (B) (i), (ii), (iii), (iv) & (vi)
(C) (i), (ii), (iii), (v) & (vi) (D) (i), (iii), (iv), (v) & (vi)
Ans:Deleted Question
52. Aminoacyl tRNAs are escorted to the ribosome by the elongation factor
(A) EF – Tu
(B) eEF-2
(C) EF-Ts
(D) EF-G
Ans:(A) EF – Tu
53. A set of statistical methods (Column A) and their applications (Column B) in a random
manner are given below :
Column – A Column – B
1. Variance a. Measures strength of association between two variables
2. Correlation coefficient b. Prediction of value of a dependent variable based on known value of an associated variable
3. Regression analysis c. Calculation of deviation between observed & expected values
4. Chi-square analysis d. Calculate the spread of distribution
(A) 1-b; 2-d; 3-a; 4-c
(B) 1-c; 2-b; 3-d; 4-a
(C) 1-d; 2-a; 3-b; 4-c
(D) 1-a; 2-c; 3-b; 4-d
Ans:(C) 1-d; 2-a; 3-b; 4-c
54.Which of the following is the correct definition for the character evolution patterns
shown above ?
(A) (i) – Autapomorphy ; (ii) – Synepomorphy ; (iii) – Homoplasy
(B) (i) – Autapomorphy ; (ii) – Homoplasy ; (iii) – Synepomorphy
(C) (i) – Synepomorphy ; (ii) – Autapomorphy ; (iii) – Homoplasy
(D) (i) – Synepomorphy ; (ii) – Homoplasy ; (iii) – Autapomorphy
Ans:(D) (i) – Synepomorphy ; (ii) – Homoplasy ; (iii) – Autapomorphy
55. Which of the following events will NOT lead to transformation of a normal cell into a
cancer cell ?
(A) Gain of function of oncogenes
(B) Loss of function of tumor suppressors
(C) Gain of function of genes involved in nucleotide excision repair
(D) Loss of function of pro-apoptosis related genes
Ans:(C) Gain of function of genes involved in nucleotide excision repair
56. What can be the impact of excessive use of nitrogenous fertilizers in agriculture ?
(i) Proliferation of nitrogen fixing microorganism in soil can occur
(ii) Increase in the acidity of soil can occur
(iii) Leaching of nitrate to the ground water can occur
Select the correct one.
(A) (i) & (iii) only
(B) (ii) only
(C) (ii) & (iii) only
(D) (i), (ii) & (iii)
Ans:(C) (ii) & (iii) only
57. Which of the following is NOT a chromosomal anomaly ?
(A) Cri du Chat syndrome
(B) Jacob’s syndrome
(C) Proteus syndrome
(D) Patau syndrome
Ans:(C) Proteus syndrome
58. Baula project is meant for
(A) Turtles (B) Snow leopard (C) Lion (D) Crocodiles
Ans:(D) Crocodiles
59. Which one of the following does NOT contribute to micro-evolutionary change ?
(A) Natural selection (B) Random mating (C) Genetic drift (D) Mutation
Ans:(B) Random mating
60. Choose the agent that can cause relaxation of mesangial cells.
(A) Dopamine (B) Histamine (C) Thrombaxane A2 (D) Norepinephrine
Ans:(A) Dopamine
61. Which one of the following does not belong to human antimicrobial proteins and
Peptides at epithelial surfaces forming part of innate immunity ?
(A) Lactoferrin (B) Defensin (C) Calprotectin (D) Vimentin
Ans:(D) Vimentin
62. Alveolar cells of the lung derived from
(A) Ectoderm (B) Mesoderm
(C) Endoderm (D) Both Ectoderm & Mesoderm
Ans:(C) Endoderm
63. Entry of enveloped viruses into host cells is mediated by
(A) Only endocytosis
(B) Only periocytosis
(C) Both endocytosis and membrane fusion
(D) Both endocytosis and phagocytosis
64. Which one of the following is NOT true for cholesterol metabolism ?
(A) Biosynthesis takes place in the cytoplasm.
(B) HMG-CoA reductase is the key regulator of cholesterol biosynthesis.
(C) Reduction reactions use NADH as cofactor.
(D) Cholesterol is transported by LDL in plasma.
65. If a cell has committed to a particular fate, during development, it is said to be
(A) Differentiated (B) Tolipotent (C) Pluripotent (D) Determined
Ans:(D) Determined
66. Lacewings belong to which insect order ?
(A) Diploptera (B) Neuroptera (C) Megaloptera (D) Coleoptera
Ans:(B) Neuroptera
67. Which gas does NOT contribute to global warming through its greenhouse effect ?
(A) Nitrous oxide (B) Methane (C) Carbon dioxide (D) Nitric oxide
Ans:(D) Nitric oxide
68. Lectotype is
(A) Duplicate of holotype
(B) Specimen selected from original material for nomenclature type where there is no holotype
(C) Specimen described along with holotype
(D) Specimen cited by author making one holotype
Ans:(B) Specimen selected from original material for nomenclature type where there is no holotype
69. Which of the following geological period is known as the “Age of Amphibians” ?
(A) Carboniferous (B) Devonian (C) Ordovician (D) Cretaceous
Ans:(A) Carboniferous
70. Which of the following is NOT a second messenger ?
(A) Cyclic GMP (B) Diacylglycerol (C) Inositol triphosphate (D) Phosphetidyl inositol
Ans:(D) Phosphetidyl inositol
71. Which of the following statements is true ?
(A) Trademark registrations can be renewed for an unlimited number of 10 years.
(B) Trademark law is intended to protect the owner’s original work.
(C) Surnames alone can be trademarked.
(D) To qualify for federal protection, a mark must be distinctive and have a “secondary meaning”.
Ans:(A) Trademark registrations can be renewed for an unlimited number of 10 years.
72. What is the effect produced when a bee carries pollen from one population to another ?
(A) Assortative mating
(B) Gene flow
(C) Founder effect
(D) Diversifying selection
73. GFP protein was originally isolated from
(A) Drosophila melanogaster
(B) Carnorhabditis elegans
(C) Arabidopsis thaliana
(D) Aequoria victoria
Ans:(D) Aequoria victoria
74. The S wave of normal human ECG originates due to the
(A) Left to right septal depolarization
(B) Reprolanzation of atrium
(C) Septal and left ventricular depolarization
(D) Late depolarization of the ventricular walls moving back toward the AV junction
Ans:(D) Late depolarization of the ventricular walls moving back toward the AV junction
75. Two siblings who inherit 50% of the genome from the mother and 50% from the father
show lots of phenotypic differences. Which one of the following events during
gametogenesis of the parents will maximally contribute to this difference ?
(A) Mutation (B) Independent assortment (C) Recombination (D) Environment
Ans:(B) Independent assortment
76. Nick translation is done by
(A) DNA polymerase I (B) Kinase (C) DNA ligase (D) DNA polymerase II
Ans:(A) DNA polymerase I
77. The philadelphia chromosome
(A) An example of gene amplification
(B) A product of a reciprocal translocation
(C) Causes retinoblastoma
(D) Causes Burkitt’s lymphoma
Ans:(B) A product of a reciprocal translocation
78. Which of the following is true regarding Anthrax ?
(A) Anthrax is highly contagious
(B) Anthrax is caused by a virus
(C) Inhalation anthrax requires infection with a large number of spores
(D) Inhalation anthrax and cutaneous anthrax are caused by separate strains of Bacillus anthracis
Ans:(C) Inhalation anthrax requires infection with a large number of spores
79. Capacilation of sperms in humans
(A) Takes place in the ampulla of the oviduct
(B) Occurs during copulation
(C) Occurs after the acrosome reaction
(D) Takes place in the epididymis of testis
Ans:(A) Takes place in the ampulla of the oviduct
80. Which one of the following technique is generally used to produce transgenic animals ?
(A) Entire foreign nucleus is introduced in exnucleated unfertilized egg.
(B) Desired DNA is microinjected into fertilized eggs followed by implantation of embryo in a foster mother
(C) Processed mRNA containing only exones are introduced into blastocyst stage embryo.
(D) cDNA of desired gene is introduced into animal embryos and implanted in a foster mother
Ans:(B) Desired DNA is microinjected into fertilized eggs followed by implantation of embryo in a foster mother
81. Tautonym is a taxonomic designation used for animals referring to
(A) Same name for genes and species
(B) The name of the author for the species
(C) Same name for species and sub-species
(D) Trinomial nomenclature
Ans:(A) Same name for genes and species
82. Which of the following programs is used to conserve a species facing extinction ?
(A) Sustainable use
(B) Edge effects
(C) Natural resources
(D) Captive breeding
Ans:(D) Captive breeding
83. Cladistic classification is based on
(A) Sequential order in which branches arise from a phylogenetic tree
(B) Cellular organization and cytoskeleton
(C) Morphological features and skeleton of individuals
(D) The order of sequence divergence
Ans:(A) Sequential order in which branches arise from a phylogenetic tree
84. Which is the correct chronological order among the following events in the history of
life ?
(i) Prokaryotic cell
(ii) Eukaryotic cell
(iii) Natural selection
(iv) Organic molecules
(v) Self replicating molecules
(A) (iv), (v), (iii), (i), (ii)
(B) (iv), (v), (i), (ii), (iii)
(C) (v), (iv), (i), (iii), (ii)
(D) (iv), (v), (i), (iii), (ii)
Ans:(A) (iv), (v), (iii), (i), (ii)
85. A person suffering from thyrotoxicosis has extremely high level of thyroid hormone in
blood. There is a failure of feedback regulation hypothelemic-pituitary-thyroid exist. The
detailed blood investigation exhibited high level of the following :
(i) Thyroid Stimulating Hormone
(ii) Thyroid Stimulating Immunoglobulin
(iii) Thyrotropin Releasing Hormone
(iv) Parathyroid Hormone
Which one of the following is the reason for such thyrotoxicosis ?
(A) (i) only
(B) (ii) only
(C) (i) & (iii)
(D) (iii) & (iv)
Ans:(B) (ii) only
86. Human serum immunoglobulin takes part in classical complement fixation pathway is
(A) IgD (B) IgE (C) IgA (D) IgG
Ans:(D) IgG
87. The following are the statements regarding the development and maintenance of anterior
and posterior compartments in each segment of Drosophila :
(i) Expression of wingless and engrailed is activated by pair-rule genes.
(ii) Continued expression of wingless and engrailed is maintained by interaction between the cells expressing Engrailed and Wingless proteins
(iii) Hedgehog is expressed in wingless expressing cells and forms short range gradient
(iv) Hedgehog is a transcription factor
(v) Engrailed is a secretory factor and binds with the patched receptor of the wingless expressing cells.
Which of the following combinations of above statements is correct ?
(A) (iii) & (v)
(B) (iii), (iv) & (v)
(C) (iv) & (v)
(D) (i) & (ii)
Ans:(D) (i) & (ii)
88. Some Drosophila larvae are exposed to 37 C during their growth. One of the adult flies
first emerged had a crossveinless phenotype. Crossveinless is a known mutant in
Drosophila. When this crossveinless fly was crossed to a known crossveinless mutant fly,
all the progeny had a normal phenotype. The observed phenotype is an example of :
(A) Phenocopy
(B) Pleiotropy
(C) Penetrance
(D) Conditional mutant
Ans:(A) Phenocopy
89. The International treaty adopted to regulate the production and use of chemicals that
contribute to the depletion of Earth’s ozone layer is known as :
(A) Rio de Janeiro Conference
(B) Montreal Protocol
(C) The Vienna Convention
(D) The Kyoto Protocol
Ans:(B) Montreal Protocol
90. G. Protein Coupled Receptors (GPCRs) are used to detect and respond in many different
types of signals and function as molecular switches.
Regarding GPCR which one of the following statements is INCORRECT ?
(A) The ‘on’ form gets bound to & subunits and activates a membrane bound effects like adenylyl cyclase, phospholipase C or ion channel.
(B) GPCRs are coupled to trimeric G proteins comprising three subunits , & .
(C) The subunit is a GTPase switch protein that alternates between an active (on) state with bound GTP and an inactive (off) state with GDP.
(D) GPCRs with a common structure of seven membrane spanning helices.
Ans:(A) The ‘on’ form gets bound to & subunits and activates a membrane bound
effects like adenylyl cyclase, phospholipase C or ion channel.
91. Following are the key points about the effect of genetic drift :
(i) Genetic drift can cause allele frequencies to change in a pre-directed way.
(ii) Genetic drift is significant in small populations
(iii) Genetic drift can lead to a loss of genetic variation within populations
(iv) Genetic drift can cause harmful alleles to become fixed.
Which one of the following combinations are true ?
(A) (i) & (ii) only
(B) (ii) & (iii) only
(C) (i), (ii) & (iii)
(D) (ii), (iii) & (iv)
Ans:(D) (ii), (iii) & (iv)
92. Which of the following is a sequence alignment tool ?
(A) BLAST
(B) PROSITE
(C) PIR
(D) PRINTS
93. What is the function of w subunit of RNA polymerase ?
(A) Cation binding
(B) Promoter binding
(C) Initiation and elongation
(D) Subunit association
Ans:(D) Subunit association
94. Which one of the following statement is INCORECT regarding the classification of stains ?
(A) Bismark brown is a basic stains
(B) Janus green B and Methylene blue are examples of neutral stains
(C) Eosin is an acidic stain
(D) Neutral red and Janus green are vital stains
Ans:Deleted Questions
95. In eukaryotic cell division, metaphase to anaphase transition is regulated by degradation
of
(A) Aurora A Kinase (B) Cyclin B1
(C) CDK1 (D) Polo-like Kinase
Ans:
96. Which of the following statements is INCORRECT in the context of diversity patterns of
a species ?
(A) Alpha diversity is diversity within a single community
(B) Beta diversity is a measure of the change in species composition from one community or habitat to another
(C) Alpha diversity is the regional diversity found among range of communities in a geographical region
(D) Gamma diversity is the regional diversity found among range of communities / habitats in a geographical region
Ans:(B) Beta diversity is a measure of the change in species composition from one community or habitat to another
97. Which of the following bacteria has subcellular localization in lysosomes ?
(A) Salmonella typhi
(B) Sheplococcus pneumoniae
(C) Vibrio cholerae
(D) Mycobacterium tuberculosis
Ans:(D) Mycobacterium tuberculosis
98. The presence & distribution of specific mRNAs within a cell can be detected by
(A) Northern blot analysis
(B) In situ hybridization
(C) Real time PCR
(D) ELISA
Ans:(B) In situ hybridization
99. The “Red Queen Hypothesis” is related to
(A) The evolutionary arms race between the host and parasite.
(B) The mating order in the harem of a polyganous male
(C) The elimination by deleterious mutations by sexual reproduction
(D) Mate selectin process by a female in a lek
Ans:(A) The evolutionary arms race between the host and parasite.
100. Production of excessive amount of corticotropin (ACTH) occur in which of the following
diseases ?
(A) Greve’s disease
(B) Greig’s syndrome
(C) Cushing’s syndrome
(D) Alport syndrome