Odisha CPET 2020 Question Paper Zoology

COMMON P. G. ENTRANCE TEST – 2020

Test Booklet No. :

DEPT. OF HIGHER EDUCATION, GOVT. OF ODISHA
TEST BOOKLET

Subject Code 47 Subject ZOOLOGY

Time Allowed : 90 Minutes Full Marks : 70
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XL – 34/8 (2) ( Continued )

1. Amoebic dysentery is caused by :
(A) Amoeba proteus
(B) Entamoeba histolytica
(C) Plasmodium vivax
(D) Taenia solium

2. Ecdysone is :
(A) BH
(B) PTTH
(C) PGH
(D) JH

3. In sponges, the cells surrounding the osculum is :
(A) Archaeocytes
(B) Myocytes
(C) Choanocytes
(D) Gland cells

4. Conchology is the study of :
(A) Coelenterate
(B) Mollusca
(C) Shell of mollusca
(D) Mentle of mollusca

5. Syncytial epidermis is found in :
(A) Hydra
(B) Ascaris
(C) Earthworm
(D) Starfish

6. Aristotle’s lantern present in :
(A) Sea lillies
(B) Sea cucumber
(C) Sea urchin
(D) Sea pea

XL – 34/8 (3) ( Turn over )

7. In earthworm, the ovary is situated in the :
(A) 10th segment
(B) 13th segment
(C) 11th segment
(D) 14th segment

8. In cephalochordates, gill slits open into :
(A) Pharynx
(B) Atrium
(C) Coelom
(D) Heart

9. Mammal like reptiles belongs to :
(A) Anapsid line of evolution
(B) Euryapsid line
(C) Parapsid line
(D) Synapsid line

10. The fossil record of Archaeopteryx have been discovered from :
(A) Britain
(B) Germany
(C) France
(D) USA

11. Largest living land animals are included in the suborder :
(A) Perissodactyla
(B) Artiodactyla
(C) Probiscidea
(D) Hyracoidea

12. The driving force of an ecosystem is :
(A) Biomass
(B) Producers
(C) Solar energy
(D) Carbohydrates in producers

XL – 34/8 (4) ( Continued )

13. The term ecotype was coined by :
(A) GoteTuresson
(B) Mc Millan
(C) Korringa
(D) Elton

14. The term biocoenosis was proposed by :
(A) Tansley
(B) Warming
(C) Kark Mobius
(D) None of these

15. Which of the following is not a limiting factor for photosynthesis ?
(A) Oxygen
(B) Carbon di oxide
(C) Chlorophyll
(D) Light

16. Receptor mediated endocytosis from plasma membrane requires which one of the
following coat proteins ?
(A) Clathrin
(B) SNARE
(C) Arrestin
(D) Glycoprotein

17. The protein that is responsible for the sliding of outer microtubule doublets against
one another to produce ciliary binding is :
(A) Nexin
(B) Dynein
(C) Tubulin
(D) None of these

18. Which of the following protein targeting mechanisms is common for mitochondria
and chloroplast organelles ?
(A) Co- translational
(B) Post-translational
(C) Co-translational and post-translational
(D) de-novo protein synthesis

XL – 34/8 (5) ( Turn over )

19. Cell cycle is controlled by :
(A) Proteolysis of cyclin dependent kinase
(B) Phosphorylation of cyclins
(C) Dephosphorylation of cyclin
(D) Proteolysis of cyclins

20. Which of the following biochemical reactions is most commonly utilized by living cells
to propagate intracellular signals ?
(A) Acylation
(B) Phosphorylation
(C) Methylation
(D) Decarboxylation

21. Isotopes used for proving semiconservative replication of DNA are :
(A) N14 and P31
(B) N14 and N15
(C) N14 and C14
(D) C14 and P31

22. In prokaryotes, the lagging primers are removed by :
(A) 3’ to 5’ exonuclease
(B) DNA ligase
(C) DNA polymerase I
(D) DNA polymerase III

23. When the human genome draft sequence was released, which of the following
observation was least expected ?
(A) The large amount of repititive DNA
(B) The size of the total genome
(C) The size of individual chromosomes
(D) The small number of protein-coding genes

24. Photoreactivation :
(A) Repairs dimers in DNA using an endonuclease
(B) Uses light to activate repair enzymes
(C) Removes alkylating agents from bases
(D) Deaminates bases

XL – 34/8 (6) ( Continued )

25. Position effect is the result of :
(A) Mutations
(B) Deletions
(C) Inversions
(D) Transversions

26. The perineurium is the connective tissue layer :
(A) Surrounding an entire nerve
(B) Surrounding individual axons in the CNS
(C) Surrounding individual axons in the PNS
(D) Surrounding fascicles of axons in the PNS

27. The most important factor in determining the percent oxygen saturation of haemoglobin
is :
(A) The partial pressure of oxygen
(B) Acidity
(C) The partial pressure of carbon dioxide
(D) Temperature

28. Reabsorption of chloride ions from the glomerular filtrate in the kidney tubule is carried
out by :
(A) Osmosis
(B) Diffusion
(C) Active transport
(D) Brownian movement

29. The gastric gland cell whose absence could lead to pernicious anaemia is the :
(A) Chief cell
(B) Goblet cell
(C) Mucous neck cell
(D) Parietal cell

30. All the hormones of the adrenal cortex are synthesized from :
(A) Tyrosine
(B) Glycoproteins
(C) Cholesterol
(D) Fats

XL – 34/8 (7) ( Turn over )

31. The primary target organ of aldosterone action is :
(A) Liver
(B) Pancreas
(C) Kidney
(D) Heart

32. The bacteriophage M13 contains as its genetic material :
(A) Single stranded RNA
(B) Double Stranded RNA
(C) Single stranded DNA
(D) Double stranded DNA

33. What is number of hydrogen bonds in B-DNA of 1000 base pairs with the proportion
of bases C, A and T in one of the strands corresponding to 60%,30% and 10%
respectively ?
(A) 2600
(B) 2400
(C) 2200
(D) 2000

34. In Sanger’s method of DNA sequencing, the growing DNA chains are terminated
because :
(A) DNA polymerase is not very processive
(B) A radioactive nucleotide is incorporated
(C) The substrates become limiting
(D) A phosphodiester bond cannot be made

35. Glucose and galactose are two isomeric monosaccharides known as :
(A) Anomers
(B) Epimers
(C) Enantiomers
(D) Conformers

XL – 34/8 (8) ( Continued )

36. Assuming they all had the same number of carbon atoms, which of the following has
the maximum number of C-H bonds ?
(A) An unsaturated fat
(B) A polyunsaturated fat
(C) A polysaccharide
(D) A saturated fat

37. Which of the following cofactor is essential for the activity of acetyl-CoA carboxylase ?
(A) NAD+
(B) Biotin
(C) TPP
(D) Vitamin B6

38. Abzymes are :
(A) Enzymes that are highly specific like antibodies
(B) Antibodies that have catalytic activities
(C) Also referred to as zymogens
(D) Enzymes that hydrolyze antibodies

39. Which of the following statement is true about non-competitive inhibition ?
(A) Km increases
(B) Km decreases
(C) Vmax increases
(D) Vmax decreases

40. Which of the following compounds is a positive allosteric regulator of the enzyme
pyruvate carboxylase ?
(A) Adenosine tri phosphate
(B) Acetyl Coenzyme A
(C) Biotin
(D) Phosphoenolpyruvate

41. p53 protein is associated with all of the following except :
(A) Tumor suppression
(B) Programmed cell death
(C) Transcription
(D) Post translational modifications

XL – 34/8 (9) ( Turn over )

42. When heterozygous black pigs are inter crossed then what is the chance of the first
two offspring being black ?
(A) 46
(B) 56
(C) 66
(D) 76

43. Toll like receptors (TLRs) play an important role in immune defence by recognising :
(A) Microbial components
(B) Conformational difference in antigenic protein
(C) MHC peptide complexes
(D) Anti idiotypic immunoglobulins

44. The macrophage rich mass found at the site of injection of an adjuvant is called :
(A) Myeloma
(B) Granuloma
(C) Adjuvant activated lymphoma
(D) None of these

45. Major variability of MHC is found in :
(A) Alpha chain
(B) β2 microglobulins
(C) Amino terminus region
(D) Domains

46. The predominant antibody in saliva is :
(A) IgG
(B) IgA
(C) IgM
(D) IgD

47. Cytokines are not :
(A) Able to induce increased blood vessel permeability
(B) Antigen specific
(C) Made in response to bacterial antigens
(D) Signals from one cell that affects the behaviour of another cell

XL – 34/8 ( 10 ) ( Continued )

48. Type I hypersensitivity is known as :
(A) Anaphylaxis
(B) Agglutination
(C) The transfusion reaction
(D) Contact hypersensitivity

49. In myasthenia gravis blocking antibodies bind to :
(A) Acetylcholine
(B) Dopamine
(C) Acetylcholine receptor
(D) Axons

50. Which of the following is an epigenetic factor for gene expression in eukaryotes ?
(A) Recombination
(B) DNA methylation
(C) Protein phosphorylation
(D) DNA protein interaction

51. Which of the following is a post-zygotic-isolating mechanism in speciation ?
(A) Behavioural isolation
(B) Seasonal isolation
(C) Fertilization failure
(D) Hybrid sterility

52. The phenomenon of genetic drift is most likely to occur in population that are :
(A) Small and inbred
(B) Undergoing gene flow
(C) Allopatric
(D) Large and panmictic

53. The first vertebrates appeared in which one of the following periods of the Palaeozoic
era ?
(A) Ordovician
(B) Silurian
(C) Evonian
(D) Mississippians
XL – 34/8 ( 11 ) ( Turn over )

54. Chaperone proteins help in :
(A) Protein folding and assembly
(B) Protein stability
(C) Both (A) and (B)
(D) None of these

55. Deviation from the Hardy-Weinberg assumption of infinitely large population size
results in :
(A) Genetic lethal
(B) Heterozygote advantage
(C) Consanguinity
(D) Genetic drift

56. In a population that is in equilibrium, the proportion of individuals showing the dominant
trait at a given locus having two allele is 84%. The frequency of the recessive allele in
the population is :
(A) 0.40
(B) 0.30
(C) 0.20
(D) 0.16

57. The folding of sheets of cells, the migration of cells and cell death are all mechanisms
of :
(A) Cleavage division
(B) Pattern formation
(C) Morphogenesis
(D) Differentiation

58. The process by which developing cells achieve their functional, mature identity as
liver or muscle or nerve is called :
(A) Cleavage division
(B) Pattern formation
(C) Morphogenesis
(D) Differentiation

XL – 34/8 ( 12 ) ( Continued )

59. Which of the following cell organelle actively participates in animal apoptosis ?
(A) Vacuoles
(B) Chloroplast
(C) Nucleus
(D) Mitochondria

60. A species facing an extremely high risk of extinction in the immediate future is called :
(A) Vulnerable
(B) Rare
(C) Endangered
(D) Link species

61. Which of the following zones in a lake suffers from lack of light and therefore limited
photosynthesis is able to take place ?
(A) Littoral
(B) Profoundal
(C) Pelagic
(D) Euphotic

62. In which year Wildlife Protection Act was implemented in India ?
(A) 1952
(B) 1962
(C) 1972
(D) 1982

63. The part of the brain that has been shown to function like a ‘Biological clock’ is the :
(A) Nucleus of the solitary tract
(B) Suprachiasmatic nucleus
(C) Gigantocellular tegmental field
(D) Optic chiasm

64. Which hormone is secreted by placenta ?
(A) ACTH
(B) Progesterone
(C) GH
(D) Gastrin

XL – 34/8 ( 13 ) ( Turn over )

65. Identify fish group which excretes urea as the primary nitrogenous end product :
(A) Teleost fishes
(B) Lung fishes
(C) Elasmobranch fishes
(D) None of these

66. Induced breeding technique is used in :
(A) Culture fishery
(B) Marine fishery
(C) Capture fishery
(D) Inland fisheries

67. Which of the following is an imino acid ?
(A) Hystidine
(B) Glycine
(C) Cysteine
(D) Proline

68. Proteins may be separated according to size by :
(A) Reverse phase chromatography
(B) Ion exchange chromatography
(C) Molecular exclusion chromatography
(D) Isoelectric focussing

69. All of the enzymes of TCA cycle are located in the mitochondrial matrix except :
(A) Citrate synthatase
(B) Alpha keto glutarate dehydrogenase
(C) Succinate dehydrogenase
(D) Fumarase

70. To be a cloning vector, a plasmid does not require :
(A) An origin of replication
(B) An antibiotic resistance marker
(C) A restriction site
(D) To have a high copy number

XL – 34/8 ( 14 ) ( Continued )

SPACE FOR ROUGH WORK

XL – 34/8 (6,880) ( 15 ) Zoology