1. The process which cannot take place in the absence of viruses is called:1. Transformation2. Conjugation3. Translocation4. Transduction

2. Pulse Polio programme is organized in our country to:1. Cure polio2. Eradicate polio3. Spread polio4. None of these

3. Connective tissues mainly contain:1. Actin2. Reticulin3. Collagen4. Elastin

4. Bark of the tree comprises:1. All tissue outside the vascular cambium2. All tissue outside the cork cambium3. Only the cork 4. The cork and secondary cortex

5. The common features shared by guard cells and mesophyll cells are:1. Differentially thick cell wall2. Uniformly thin cell wall3. Presence of chloroplast4. Dumb-bell shaped structure

6. Roots of which plant contain a red pigment which has affinity for oxygen:1. Carrot2. Soybean3. Mustard4. Radish

7. Absorption of water and minerals and fixation of the plant body is the function of:1. Root system only2. Vegetative part3. Shoot system only4. All of the above

8. Aril is the edible part of the fruits of:1. Mango2. Litchi3. Grapes4. Apple

9. A heterozygous tall plant bearing red flower on selfing produced 640 seeds. How many progeny plants in F2 generation would be pure tall bearing white flowers?

1. 102. 203. 304. 40

10. In human body ectoderm is responsible for the formation of:1. Lens of eye2. Nervous system3. Sweat glands4. All of the above

11. Human eye is sensitive to wavelength in the range of:1. 330-760 nanometer2. 790-800 nanometer3. 300-360 nanometer4. 300-390 nanometer

12. Which one the following does not act as a neurotransmitter?1. Epinephrine2. Norepinephrine3. Cortisone4. Acetylcholoine

13. The catalytic efficiency of two enzymes may be compared by the:1. Km value2. pH optimum value3. Molecular size of enzyme4. Formation of the product

14. An organic substance bound to an enzyme and essential for its activity is called:1. Holoenzyme 2. Apoenzyme3. Isoenzyme4. Coenzyme

15. Which vitamin is synthesized in our body?1. Vitamin D2. Vitamin B3. Vitamin K4. Vitamin A

16. The enzyme used for alcoholic fermentation by yeast is:1. Maltase2. Invertase3. Sucrase4. Zymase

17. Which of the following isotope is useful in finding out of the path of translocation of food?

1. O18

2. P32

3. C14

4. H3

18. Certain metabolic inhibitors which inhibit carbohydrate translocation are:1. 2, 4-dinitrophenol and Arsenic2. Azide iodoacetic acid and Lead3. Fluoride, Hydrogen cyanide4. All of the above

19. The movement of solutes in plant follows:1. Diffusion pattern2. Osmotic pattern3. Totipotency4. Imbibition

20. Dark reaction in photosynthesis is called so because:1. It can also occur only in dark2. It does not require light energy3. None of these4. Both of these

21. Which of the following would be limiting factor for photosynthesis?1. Oxygen2. Carbon dioxide3. Chlorophill4. Light

22. Which element is located at the center of porphyrin ring in chlorophyll?1. Calcium 2. Magnesium3. Potassium4. Maganese

23. Which pigment is essential for nitrogen fixation by leguminous plants?1. Anthocyanin2. Phycocyanin3. Legheamoglobin4. Phycoerythrin

24. If guanine (G) in a given DNA is 32%, what would be the amount of adenine (A)?1. 16%2. 18%3. 64%4. 68%

25. Molybdenum plays a large role in 1. Promoting flowering2. Chromosome condensation3. Nitrogen fixation4. Carbon fixation

26. All of the following are fat soluble vitamins except:1. Vitamin A2. Vitamin E3. Vitamin K4. Vitamin C

27. The dissociation curve for heamoglobin is:1. Linear 2. Sigmoid3. Hypobolic4. Hyperbolic

28. In an inducible operon, the regulator gene produces1. Inducer2. Aporepressor 3. Active repressor4. Co-repressor

29. Histone protein H4 associated with DNA in the chromatin is:1. Lysine rich2. Arginine rich3. Cystein rich4. Metheonine rich

30. The chromosomes during meiotic division divide during:1. Anaphase I only2. Anaphase II only3. Both Anaphase I and II4. Diakinesis

31. Which of the following represents the correct order in prophase I of meiosis?1. Leptotene, zygotene, diplotene, pachytene, diakinesis2. Leptotene, zygotene, pachytene, diplotene, diakinesis3. Zygotene, diplotene, pachytene, leptotene, diakinesis4. Diakinesis, zygotene, diplotene, leptotene, pachytene

32. Which one is the longest organ of human body?1. Intestine2. Skin3. Spinal cord4. Pancreas

33. What would be the correct sequence of mRNA if the sequence of bases in template strand is 5’CTTGACTGA 3’?

1. 5’UCAGUCAAG3’2. 5’GAACUGACU3’3. 5’TCAGTCAAC3’4. 5’GAACTGACT3’

34. The bacterial promoter contains sequences rich in:1. A&T 2. Only A3. Only T4. G&C

35. The unit membrane has a thickness (in Angstrom Unit) of :1. 25 2. 503. 754. 100

36. All of the following are plant hormones except:1. Auxin2. Gibberelin3. Ethylene4. Chymotrypsin

.

37. The tetrahedral geometry of carbon is best explained by:1. Monochloro methane2. Dichloro methane3. Choroform4. Carbon tetrachloride

38. If in a DNA, G is substituted with A, it would lead to a mutation called:1. Transition 2. Transversion3. Inversion4. Transformation

39. The process of cellular respiration is the best example of: 1. Anabolism2. Catabolism 3. Amphibolism4. Hyperbolism

40. The enzyme required for the formation of peptide bonds during translation is a component of:

1. Large subunit of ribosome2. Small subunit of ribosome 3. Cytoplasm4. Nucleus

41. The clock speed in computer is usually measured in:1. Bytes 2. Seconds3. Hertz4. RAM

42. Modern bacterial taxonomy for correct identification of species is based on:1. 16S rDNA sequencing2. FAMEs3. DNA-DNA hybridization4. All of the above

43. The deneracy of genetic code means:1. An amino acid may be coded by more than one codon2. A codon may code for more than one amino acid3. The same code may produce more than one type of polypeptide4. None of these

44. Which one of the following does not have any role in blood clotting?1. Ca++2. Na+3. Prothrombin4. Platelets

45. Major source of green house gasses are:1. Burning of plants2. Burning of fossil fuels3. Respiration4. Use of LPG

46. Fossils are generally found in 1. mentary rocksSedi2. Igneous rocks3. Metamorphic rocks4. Ice

47. Among the following which mutagen induces formation of thymidin dimer in DNA?

1. UV2. Ethylemethyle sulphate3. Nitrous oxide4. Ethydium bromide

48. Extrachromosomal inheritance can be detected by:1. Back cross2. Test cross3. Reciprocal cross4. Dihybrid cross

49. Immunoglobin playing role in allergic reaction is:1. IgG2. IgM3. IgD4. IgE

50. Hydrolytic enzymes get accumulated in the:1. Lysosome2. Plastids3. Golgi complex4. Nucleus

51. Albinos have visual problem in bright light because they lack:1. Melanin2. Rods3. Cones4. Retina

52. Covalent bond formation between two atoms takes place by:1. Transfer of electron from one atom to another2. One side sharing of electrons3. Electron sharing by both interacting atom4. Affinity between two atoms

53. Bacteria divide by:1. Amitosis2. Mitosis3. Fragmentation4. Meoisis

54. CDFD, a forensic science laboratory of the Government of India based on Molecular Biological tools, is located at:

1. New Delhi2. Hyderabad3. Madurai4. Mumbai

55. Chitin occurs in the cell wall of:1. Bacteria2. Fungus3. Mycoplasma4. Virus

56. Which anticancerous drug has been extracted from Catharanthus roseus?1. Taxol2. Vincristine3. Colchicin4. Serpentine

57. A protein which is to be degraded in proteosome is tagged with:1. Polyglycine2. Polyprolin3. Ubiquitin4. Formyl methionine

58. An oligonucleotide DNA sequence tagged with fluorescent tag used to identify unknown gene by hybridization is termed as:

1. Probe2. Reporter gene3. Ligand4. cDNA

59. The example of X-linked inheritance in human is:1. Hemophilia2. Colour blindness3. Both 1 & 34. Hypertrichosis

60. Post translational modification of proteins occurs in:1. Nucleus2. Mitochondria3. Endoplasmic reticulum4. Glyoxysomes

61. The complementary gene ratio as observed in interaction between two dominant genes is:

1. 9:72. 13:33. 9:3:44. 15:1

62. Stored food in fungi is:1. Glucose2. Starch3. Glycogen4. Insulin

63. Lignin, the most abundant organic substance in plants, is an example of 1. Primary metabolite2. Secondary metabolite3. Both 1 and 24. None of these

64. Light reaction of photosynthesis in chloroplast proceeds in1. Granna2. Stroma3. Outer membrane 4. Inner membrane

65. In human, Down’s syndrome results due to trisomic condition of chromosome number:

1. 232. 223 213.4. 20

66. The terminal end of chromosome is:1. Telomere2. Centromere3. Satellite4. Metamere

67. Which one is not a factor of the abiotic environment?1. Sunlight2. Decomposers3. Water4. Temperature

68. The Red Data Book which lists endangered species is maintained by:1. WWF2. UNO3. WHO4. IUCN

69. International Rice Research Institute is in:1 Japan2. India3. Phillipines4. China

70. The conversion of pyruvic acid to acetyl Co A requires:1. Oxidative decarboxylation2. Oxidative deamination3. Reductive decarboxylation4. Reductive deamination

71. Which of the following character is controlled by a holandric gene?1. Sickle cell anemia2. Hypertrichosis3. Blood clotting4. Phenylketonurea

72. Among the following which gene is not concerned with induction of cancer?1. Src2. Ras3. P53

4. Actin

73. The cell fusion is an essential phenomenon in the development of:1. Nerve2. Muscle3. Spleen4. Liver

74. Dehang-Debang Bioreserve is situated in the state:1. Arunachal Pradesh2. Assam3. West Bengal4. Mijoram

75. ELISA technique is based on:1. Antigen-Antibody interaction2. Antigen-Antibody precipitation3. Antigen –Antibody binding4. None of these

76. Vaccines are: 1. Attenuated microorganism

2. Inactivated microorganisms3. Both 1& 24. None of the above

77. Inbreeding leads to sterility mainly because it leads to production of:1. Recessive homozygous progeny2. Dominant homozygous progeny3. Heterozygous progeny4. Mutant progeny

78. The usual sites of auxin synthesis are:1. Meristems 2. Enlarging tissue3. Both 1& 24. Shoot

79. Which light wavelength promotes germination of seed?1. Red 2. Blue3. Far red4. Red and far red

80. The Di-deoxy method of DNA sequencing was developed by:1. Messelson & Stahl2. Sanger3. Maxam & Gilbert4. Watson & Crick

81. Which one of the following is one of the three ancestors of common bread wheat? 1. Solanum

2. Zingiber3. Oryza4. Aegilops

82. The sequence of bases in tRNA can be represented as:1. 5’C---ACC3’2. 5’G---CCA3’ 3. 5’U---UCC3’4. 5’A---CCA3’

83. “Red rot” in sugarcane is caused by:1. Puccinia2. Albugo3. Synchytrium4. Colletotrichum

84. If the frequency of a recessive phenotype is 50% in a large Mendelian population, what would be frequency of dominant gene?

1. 30%2. 40%3. 50%4. 60%

85. The genetic material of HIV is a:1. Single stranded DNA

2. Double stranded DNA3. Single stranded RNA4. Double stranded RNA

86. The driving force behind evolution is:1. Sexual reproduction2. Natural selection3. Mutation4. Acquired characters

87. BCG vaccine is used to cure:1. Pneumonia2. Tuberculosis3. Emphysema4. Small pox

88. Red blood corpuscles placed in 0.5% sodium chloride solution will show:1. Bursting2. Crenation3. Plasmolysis4. Turgidity

89. Which one of the following is an important tool of Recombinant DNA Technology?1. Transformylase

2. Restriction endonuclease3. DNA polymerase4. Exonuclease

90. The sequence of organelles involved in Photorespiration is:1. Chloroplast MitochondriaPeroxisomes2. MitochondriaCholoroplastPeroxisome3. PeroxisomeChloroplastMitochondria4. Chloroplast PeroxisomeMitochondria

91. Which Immunoglobulin is found in maximum percentage of total immunoglobulin in serum?

1. IgG2. IgM3. IgD4. IgA

92. Which among the following is a double membranous cell organelle?1. Peroxisome2. Mitochondria3. Glyoxysome4. Lysosome

93. Stamens in the flowers of Citrus are:1. Monadelphous

2. Diadelphous3. Polyadephous4. Versatile

94. The rate of evolutionary processes have gone slow mainly because:1. The earth has become heated 2. There is lack of water on earth surface3. The environment has become oxidative4. The environment has become reductive

95. Which one of the following is a biodegradable plastic?1. Leinolic acid2. Poly hydoxy butyrate3. Catechol4. Formamide

96. Which of the following pair will form a buffer solution?1. CH3COONH4 and NH4CL2. CH3COONa and CH3COOH3. CH3COOH and NaOH4. CH3COOH and H3PO4

97. Membrane permeability is controlled by:1. Na+

2. K+

3. Both (1) and (2)4 Ca2+

98. From the point of view of molecular weight, the smallest amino acid is:1. Arginine2. Tryptophan3. Glycine4. Valine

99. Spoilage of food material is prevented in cold storage is due to:1. Reduced respiration at low temperature2. Reduced enzyme activity in the food article 3. Reduced enzyme activity in the microbes as well as food article 4. Purified nature of air

100. Feedback inhibition is caused by blocking of enzyme of the metabolic pathways by:1. Accumulated end products 2. Chemical produced by hormones 3. Hormones 4. Competitive inhibition

Answer Sheet

Que. Ans. Que. Ans. Que. Ans. Que. Ans. Que. Ans.1 4 21 1 41 3 61 1 81 42 2 22 2 42 1 62 3 82 23 3 23 3 43 1 63 2 83 44 1 24 2 44 2 64 1 84 15 3 25 3 45 2 65 3 85 36 2 26 4 46 1 66 1 86 37 1 27 2 47 1 67 4 87 28 2 28 3 48 3 68 4 88 39 4 29 2 49 4 69 3 89 210 4 30 2 50 1 70 1 90 411 3 31 2 51 1 71 2 91 112 3 32 2 52 3 72 4 92 213 1 33 1 53 1 73 2 93 314 4 34 1 54 2 74 1 94 315 3 35 3 55 2 75 1 95 216 4 36 4 56 2 76 1 96 217 3 37 4 57 3 77 1 97 318 4 38 1 58 1 78 3 98 319 1 39 3 59 3 79 1 99 320 2 40 1 60 3 80 2 100 1