University of Hyderabad (UoH) 2010 M.Sc Animal Production Management Department of Animal Sciences ENTRANCE ,2O1O Animal Biotechnology - Question Paper
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Department of Animal Sciences ENTRANCE EXAMINATION, June 2010
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Time: 2 hours
INSTRUCTIONS: PLEASE READ BEFORE ANSWERING
1. Enter your hall ticket number on this sheet and the answer (OMR) sheet.
2. Answers have to be marked on the OMR answer sheet following the Instructions provided there upon.
3. Hand over both the question paper booklet and OMR answer sheet at the end of the examination.
4. All questions carry one mark each. Answer all, or as many as you can.
5. 0.33 mark will be deducted for every wrong answer.
6. There are total of 13 pages in this question paper excluding answer sheet. Answer sheet is attached separately. Check this before you start answering.
7. The question paper consists of part "A" and part "B". The marks obtained in part "A" will be taken into consideration in case of tie i.e., when more than one student gets equal marks; to prepare the merit list.
1. Ninhydrin test is given by
A) Carbohydrates C) Alkanes
B) Proteins D) Alkenes
2. Which immunoglobulin is the principal one found in secretions such as milk?
A) IgG C) IgD
B) IgA D) IgM
3. Non-proliferative phase of cell cycle is
A) G1 -> GO C) G1 >G2
B) S D) M
4. Leucosolenia is an example of which class of the phylum Porifera?
A) Hevactinellidae B) Demospongia
C) Calcipongiae D) Euspongia
5. 12 g of an alkaline earth metal gives 14.8 g of its nitride. Atomic weight of that metal is
A) 20 B) 12
C) 40 D) 14.8
6. What form of nlicleotide represents the major currency of a cell?
A) Adenosine-5'-triphosphate B) 3'-5'cyclic adenosine monophosphate
C) 2'-0-Methyl-adenosine D) Adenosine-5'-diphosphate
monophosphate
7. At physiological pH, the carboxyl and amino groups in an amino acid are in the following form
A) -COO'; -NH2 B) -COOH; nh2
C) -cooh; nh3+ d) -coo; nh3+
8. Which of the following animals reproduce asexually by fragmentation?
A) Nematodes B) Sponges
C) Planarians D) Echinoderms
9. Removal of the Bursa of Fabricius in a chick results in
A) Decrease in the number of T B) Anemia
lymphocytes
C) Delayed-type hypersensitivity D) Low serum level of antibodies
10. Which of the following does not secrete steroid hormones?
A) Ovary B) Pituitary
C) Testis D) Corpus luteum
11. The enzymes which use the energy of ATP hydrolysis to move into and melt double-stranded DNA are
A) DNA ligase B) DNA helicase
C) DNA primase D) DNA polymerase
12. Calcitonin is secreted by
A) Thyrotrophs B) Parafollicular C cells of thyroid
C) p-cells of pancreas D) Follicular or principal cells of thyroid
13. The conversion of sugar CHOn- CO2 is
A) Oxidation B) Reduction
C) oxidation and reduction D) Neutralization
14. A mixture of red and blue ink can be separated by
A) Distillation B) Crystallization
C) Chromatography d) Sublimation
15. The tertiary structure of a protein refers to the
A) presence of alpha-helices or beta-sheets
B) the sequence of amino acids
C) the unique three dimensional folding of the molecule.
D) interactions of a protein with other sub-units or enzymes
16. The "satiety factors" that regulate food intake is
A) Peptin B) Leptin
C) Statin D) Pepsin
17. The atomic weight and atomic number of an element are A and Z, respectively. The number of neutrons in the atom of that element is
A) A B) Z
C) Z+A D) A-Z
18. Susceptibility to duodenal ulcers is increased by an infection of the bacterium
A) Helicobacter pylori B) Escherichia coli
C) Pseudomonas aeruginosa D) Staphylococcus aureus
19. Cholecystokinin is secreted by
A) stomach B) Liver
C) duodenum D) Colon
20. The plants which produce only pollen or ovules are called
A) Dichogamous B) Monoecious
C) Dioecious D) Monogamous
21. The molarity of a solution containing 5.844 g of NaCI in 100 ml is
A) 0.01M B) 1M
C) 0.1M D) 10M
22. The ability to hum a tune or recall a beautiful sunset in Kanyakumari is a
function of
A) Cerebellum B) Frontal lobe
C) Temporal lobe D) Parietal lobe
23. Which of the following terms does NOT refer to an example of a weak force of interaction between two biological molecules?
A) Covalent B) Hydrophobic
C) Electrostatic D) Hydrogen
24. CO2 is mainly transported in the blood in one of the following forms:
A) Carbamino hemoglobin B) Carbamino plasma protein
C) Dissolved C02 D) Bicarbonate
25. An enzyme acts by
A) decreasing the pH
B) increasing the pH "
C) reducing the energy of activation
D) increasing the energy of activation
26. Coenzymes FMN and FAD are derived from
A) Vitamin C B) Vitamin B6
C) Vitamin Bi D) Vitamin B2
27. Glucose is oxidized in the_of cells.
A) Cytoplasm B) Mitochondria
C) Chloroplast D) Ribosomes
28. Shortage of acetylcholine in brain is associated with
A) Parkinson's disease B) Alzheimer's disease
C) Huntington's disease D) Schizophernia
29. In animals, the nervous system is derived from
A) ectoderm B) Mesoderm
C) endoderm D) Mesoendoderm
30. Regression of amphibian tail is under the influence of
A) estrogens B) Thyroxine
C) androgens D) Insulin
S'is-
31. All of the following are true with respect to IgE molecules, except
A) they are the principal immunoglobulin class involved in allergic reactions.
B) they are involved in mediating anti-parasitic immune responses.
C) they will cross the placenta and fix complement.
D) they can stimulate the release of histamine.
32. The percentage of oxygen in NaOH is
A) 40 B) 16
C) 8 D) 1
33. Which one of the following is an essential amino acid?
A) Alanine B) Threonine
C) Aspartic acid D) Glycine
34. The amino acid sequence of a peptide"Q-W-E-D" is
A) Tryptophan-Glutamine-Glutamate-Aspartate
B) Glutamine-Tryptophan-Aspartate-Glutamate
C) Glutamine-Tryptophan-Glutamate-Aspartate
D) Glutamate-Tryptophan-Glutamine-Aspartate
35. Biological oxidation in Kreb's cycle involves
A) N2 B) C02
C) 02 D) S02
36. Cyanide (CN~) blocks the electron transport chain at
A) Cytochrome b B) Cytochrome a+a3
C) Cytochrome c D) Ubiquinone
37. The metal that can be extracted directly from sea water is
A) K B) Mg
C) Zn D) Ca
38. Which one of the following elements occurs free in nature?
A) Nitrogen B) Phosphorous
C) Arsenic D) Antimony
39. Fight or flight response is associated with
A) Catecholamines B) Indoleamines
C) Opioid peptides D) Acetylcholine
40. When AG is negative, the reaction is
B) endothermic D) ectothermic
A) exothermic
C) hypothermic
41. Which of the following states that no two species can occupy the same niche indefinitely when resources are limiting?
A) Principle of resource limitation
B) Principle of species resourcing
C) Principle of competitive exclusion
D) Principle of competitive termination
42. The vector responsible for the transmission of Kala-azar is
A) House fly B) Sand fly
C) Mosquito D) Tsetse fly
43. The loss of an electron by a molecule is called
A) oxidation B) enthalpy
C) reduction D) enduced fit
44. White (fast-twitch) fibres differ from red (slow-twitch) fibres in having
A) a relatively large number of mitochondria and high ATPase activity
B) a relatively small number of mitochondria and low ATPase activity
C) a relatively small number of mitochondria and high ATPase activity
D) a relatively small number of mitochondria and low ATPase activity
45. Unsaturated fatty acids is present abundantly in
A) pulses B) fish
C) meat D) egg
46. Nitrous oxide, when inhaled in large quantities is fatal as it
A) is a neurotoxin B) it binds to hemoglobin
C) it causes brain anoxia D) it causes stroke
47. T vector cloning for a PCR product requires
A) Polynucleotide kinase B) Terminal transferase
C) Klenow DNA- proof reading D) Taq DNA polymerase polymerase
48. Tay-Sachs disease has clinical impact solely on
A) pancreas B) liver
C) brain D) kidney
49. Hydrophobic interactions are exhibited by
'ons B) hydration shells
C) polar molecules D) non-polar molecules
50. Which of the following genotypes would produce largest variety of gametes if the alleles get assorted independently?
A) aa BB Cc Dd B) Aa bb CC DD
C) Aa Bb CC Dd D) AA BB CC DD
2+ .
51. Ca released in response to a stimulus in the skeletal muscle binds to
A) troponin B) tropomyosin
C) actin D) Myosin
52. The key enzyme involved in gluconeogenesis is
A) pyruvate dehydrogenase B) malate dehydrogenase
C) phosphenolpyruvate carboxykinase D) hexokinase
53. The most serious and fatal form of anthrax is
A) pulmonary anthrax B) gastrointestinal anthrax
C) cutaneous anthrax D) ocular anthrax
54. A microbial culture started with 5 cells and reached to a density of 160 cells. How many generations did the cells go through assuming no cell death occurred:
A) 5 B) 6
C) 7 D) 8
55. Which DNA polymerase in eukaryotes is involved in "Okazaki fragments" synthesis after the removal of RNA primer?
A) DNA polymerase a B) DNA polymerase e
C) DNA polymerase 5 D) DNA polymerase (3
56. Which of the following is considered to be a fibrous protein?
A) Keratin B) Immunoglobulin
C) Hemoglobulin D) Myoglobulin
57. Where does endogenous fatty acid synthesis occur in humans?
A) Lactating mammary gland B) Islets of Langerhans
C) Adipose tissue D) Intestine
58. The extra embryonic membrane that gives protection to the developing embryo from shocks is
A) Yolk sac C) Chorion
B) Allantois D) Amnion
59. Which one of the following statements is correct with reference to
o vo viviparity?
A) Ovoviviparity is restricted to few terrestrial forms.
B) Ovoviviparity is a common phenomenon in amphibians only.
C) Ovoviviparity is restricted to few exotic mammalian species.
D) Ovoviviparity is seen in a variety of aquatic forms, reptiles and invertebrates.
60. Which cellular structure in animal cells contain high amount of cholesterol?
A) Cellular/plasma membrane B) Lysosomes
C) Endoplasmic reticulum D) Nuclear membrane
61. Adrenaline produced by adrenal medulla is a
A) fatty acid B) amines
C) peptide D) steroid
62. Electron microscopes have greater resolving power than light microscopes because
A) the wavelength of electrons is much shorter than the wavelength of visible light
B) the wavelength of electrons is much longer than the wavelength of visible light
C) because the beams in electron microscopes overlap creating a clearer picture
D) electron microscopes have more lenses
63. In certain plants, the embryos in the seed may be produced asexually from the parent plant, which is known as
A) Monomixis B) Polymixis
C) Holomixis D) Apomixis
64. Athletes get muscle cramps due to
A) accumulation of lactic acid
B) sudden drop in myosin levels
C) respiratory problem
D) dehydration
65. The urea cycle occurs in the
A) mitochondria and cytoplasm B) mitochondria and lysosome
C) endoplasmic reticulum and D) Golgi complex and mitochondria
peroxisomes
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66. Spermatogenesis occurs in the A) uriniriferous tubules C) seminal vesicles B) D) |
epididymis seminiferous tubules |
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67. Superphosphate used as a fertilizer is: A) Calcium phosphate b) C) Calcium dihydrogen phosphate D) |
Ammonium phosphate Ammonium dihydrogen phosphate |
68. In the treatment of asthma, the gases used are a mixture of
A) helium and oxygen B) neon and oxygen
C) xenon and hydrogen D) argon and oxygen
69. Assuming the half-life of a substance is 5 days, what will be the amount of the substance left after 15 days if the initial amount is 64 grams?
A)
C)
4 gram 8 gram
B) 32 gram
70. In humans, the "Barr Body" is an
A) active X chromosome in females
C) inactive Y chromosome in males
71. Dry ice is
A) solid ice without any water
C) solid carbon dioxide
B) active X chromosome in males
D) inactive X chromosome in female
B) solid sulphur dioxide
D) solid benzene
72 Tr,e?*ment of root t'P meristem cells with the microtubule inhibitor colchicine results in all of the followinf except
A) induction of polyploidy B) prevention of cytokinesis
C) inhibition of mitotic spindle D) cessation of DNA replication assembly
73. A silent mutation in a gene results in
A) no change in the nucleotide sequence of mRNA encoded by the gene
B) no change in the amino acid sequence of the protein
C) no expression of the protein encoded by the gene
D) a shift in the translational reading frame
74. "The descent of man was the work done by
A) Alfred Russel Wallace b) Charles Darwin
C) Malthus D) Stephan Gould
-S- /y
75. Nuclides having the same atomic number are known as
A) isomers B) isotopes
C) isobars D) isotones
76. Two proteins of molecular masses of 120 kDa and 25 kDa can be easily separated by
A) size exclusion chromatography B) affinity chromatography
C) ion exchange chromatography D) adsorption chromatography
77. What process is used to convert vegetable oils into margarine and other solid or semisolid vegetable shortenings?
A) Bromination B) Hydrolysis
C) Catalytic hydrogenation D) Oxidation
78. Compound tubular glands found in the duodenum are known as
A) Brunner's gland B) Bladin's gland
C) Cowper's gland D) Ebner's gland
79. 90 g of water is equivalent to moles?
A) 6.02 x 1023 B) 45
C) 5 D) 9 x 102
80. Proteins synthesized by the rough ER are
A) for internal storage B) only cytoplasmic proteinss
C) to build more membranes in the D) exported from the cell cell
81. Heavy water is
A) H218 O B) D20
C) water obtained by repeated D) water at 4 C distillation
82. The most reactive form of carbon is_.
A) Diamond B) Graphite
C) Coal D) Charcoal
83. What is the caloric value of protein meal per gram?
A) 9 B) 4
C) 7 D) 5
84. Cholesterol that is present in the blood serum is closely associated with
A) hardening of the arteries B) kidney stones
C) Diabetes D) Osteoporosis
85'In iChJ!f !he f,,owi"9 c,s of Subphylum Mandibulata, the head bears maxillae that are fused to form a plate-like structure called gnathochilarium*
A) Crustacea B) Chilopoda '
C) Insecta D) Diplopoda
86. Which has maximum molecules?
A) 7g N2 B)
16g 02 16g N02
Neuston
Epineuston
c) 2g H2 D)
87. The larvae of mosquito are example for
A) Neckton B)
C) Hyponeuston D)
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88. Sulphuric acid cannot be used A) As a pickling agent C) In white paints |
B) In lead storage batteries D) In manufacture of dyes |
89. Which of the following is having strongest covalent bond?
A) HCl B) CI-CI
c) C-CI D) Na-CI
90. Which of the following cell compartment is associated with a protein
skeleton composed of lamins?
A) Basement membrane B) Peroxisomes
C) Nucleus D) Mitochondrion
91. Which of the following amino acid does not undergo phosphorylation?
A) Serine B) Threonine
C) Tyrosine D) Alanine
92. Transmembrane and secreted forms of immunoglobulins are generated from the same heavy chain gene by
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A) rearrangement of DNA sequences B) C) proteolytic cleavage of the D) polypeptide |
alternate splicing of mRNA transcript post-translational modification of polypeptide |
93. Which of the following protein is not a part of the nucleosome?
A) HI B) H2A
C) H3 D) H4
94. A patient with Klinefelter's syndrome will have the following chromosomes
A) 44, XXX B) 44, XXY
C) 45, XXY D) 44, XYY
95. Characteristics that have arisen as a result of common evolutionary descent are said to be
A) Analogous B) Homologous
C) Hetererogamous D) Contiguous
96. Lipopolysaccharide (LPS), a potent inducer of cytokine synthesis is
A) endotoxin released by gram-negative bacteria
B) endotoxin released by gram-positive bacteria
C) exotoxin secreted by gram-negative bacteria
D) exotoxin secreted by gram-positive bacteria
97. The DNA from bacteriophage <t>X174 has base composition of 23%A, 32% T,
30% G and 15% C. Which of the following best describes the phenomenon?
A) In viral genomes, the base pairing does not follow the standard Watson-Crick rule
B) Nucleic acids from viruses are tightly complexed with nucleic acid-binding proteins and they cannot base-pair with one another.
C) The genome of bacteriophage OX174 is single-stranded
D) Viral genomes are linear and tolerate base-pair mismatches
98. A second mutation in the same gene restores the wild type phenotype. This is known as_
A) gene conversion B) epistasis
C) intergenic complementation D) intragenic suppression
99. When the alleles of a and a conform to Hardy-Weinberg expectations and if the frequency of a is 0.3, which of the following will be the most common genotype in the population?
A) A B) aa
C) AA D) Aa
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A) it is easier to clone cDNA than genomic DNA 100 gWeh;o'JcPDrNTbnecruSeUkarVO,IC 9e"e baCteria' * |
B) cDNA is shorter in length |
C> Srmtere D) that'cannotber 9enesi1?v intror|s
tnat cannot be removed in bacteria
For rough work
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Attachment: |
| Earning: Approval pending. |
