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Question 1 of 90
1. Question
Which one of the following statements is correct with reference to enzymes?
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Question 2 of 90
2. Question
Which cells of ‘Crypts of Lieberkuhn’ secrete antibacterial lysozyme?
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Question 3 of 90
3. Question
Phosphoenol pyruvate (PEP) is the primary CO2 acceptor in:
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Question 4 of 90
4. Question
Match the following sexually transmitted diseases(Column I) with their causative agent (Column II) and select the correct option
Column I Column II (a) Gonorrhea (i) HIV (b) Syphilis (ii) Neisseria (c) Genital Warts (iii) Treponema (d) AIDS (iv) Human Papilloma – Virus -
Question 5 of 90
5. Question
Which among the following are the smallest living cells, known without a definite cell wall, pathogenic to plants as well as animals and can survive without oxygen?
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Question 6 of 90
6. Question
Which one from those given below is the periods for Mendel’s hybridization experiments?
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Question 7 of 90
7. Question
Flowers which have single ovule in the ovary and are packed into inflorescence are usually pollinated by :
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Question 8 of 90
8. Question
Asymptote in a logistic growth curve is obtained when:
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Question 9 of 90
9. Question
Out of ‘X’ pairs of ribs in humans only ‘Y’ pairs are true ribs. Select the option that correctly represents values of X and Y and provides their explanation:
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Question 10 of 90
10. Question
MALT constitutes about __________percent of the lymphoid tissue in human body.
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Question 11 of 90
11. Question
Homozygous purelines in cattle can be obtained by:
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Question 12 of 90
12. Question
Among the following characters, which one was not considered by Mendel in his experiments on pea?
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Question 13 of 90
13. Question
Which of the following cell organelles is responsible for extracting energy from carbohydrates to form ATP?
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Question 14 of 90
14. Question
If there are 999 bases in RNA that codes for a protein with 333 amino acids, and the base at position 901 is deleted such that the length of the RNA becomes 998 bases, how many codons will be altered?
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Question 15 of 90
15. Question
Which of the following are found in extreme saline conditions?
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Question 16 of 90
16. Question
Receptor sites for neurotransmitters are present on:
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Question 17 of 90
17. Question
Artificial selection to obtain cows yielding higher milk output represents:
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Question 18 of 90
18. Question
The hepatic portal vein drains blood to liver from
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Question 19 of 90
19. Question
The water potential of pure water is:
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Question 20 of 90
20. Question
Which of the following represents order of ‘Horse’?
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Question 21 of 90
21. Question
Alexander Von Humbolt described for the first time:
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Question 22 of 90
22. Question
DNA fragments are:
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Question 23 of 90
23. Question
A baby boy aged two years is admitted to play school and passes through a dental check-up. The dentist observed that boy had twenty teeth. Which teeth were absent?
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Question 24 of 90
24. Question
Anaphase promoting Complex (APC) is a protein degradation machinery necessary for proper mitosis of animal cells. If APC is defective in a human cell, which of the following is expected to occur?
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Question 25 of 90
25. Question
An important characteristic that hemichordates share with Chordates is
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Question 26 of 90
26. Question
The genotypes of a Husband and Wife are IAIB and IAi
Among the blood types of their children how many different genotypes and phenotypes are possible -
Question 27 of 90
27. Question
Transplantation of tissues / organs fails often due to non-acceptance by the patient’s body. Which type of immune –response is responsible for such rejection
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Question 28 of 90
28. Question
Adult human RBCs are enucleate. Which of the following statement (s) is / are not most appropriate explanation for this feature?
- They do not need to reproduce
- They are somatic cells
- They do not metabolize
- All their internal space is available for oxygen transport
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Question 29 of 90
29. Question
Lungs are made up of air-filled sacs, the alveoli. They do not collapse even after forceful expiration because of
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Question 30 of 90
30. Question
Zygotic meiosis is characteristic of
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Question 31 of 90
31. Question
Select the correct route for the passage of sperms in male frogs
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Question 32 of 90
32. Question
Which one of the following statements in not valid for aerosols
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Question 33 of 90
33. Question
Viroids differ from viruses in having
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Question 34 of 90
34. Question
During DNA replication, Okazaki fragments are used to elongate
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Question 35 of 90
35. Question
Plants which produce characteristic Pneumatophores and show vivipary belong to
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Question 36 of 90
36. Question
The process of separation and purification of expressed protein before marketing is called
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Question 37 of 90
37. Question
Identify the wrong statement in context of heartwood
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Question 38 of 90
38. Question
Spliceosomes are not found in cells of
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Question 39 of 90
39. Question
Which of the following statements is correct?
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Question 40 of 90
40. Question
Which ecosystem has the maximum biomass
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Question 41 of 90
41. Question
The final proof for DNA as the genetic material came from the experiments of
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Question 42 of 90
42. Question
The function of copper ions in copper releasing IUD’s is
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Question 43 of 90
43. Question
An example of colonial alga is
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Question 44 of 90
44. Question
Root hairs develop from the region of:
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Question 45 of 90
45. Question
Hypersecretion of Growth Hormone in adults does not cause further increase in height, because:
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Question 46 of 90
46. Question
Which of the following in sewage treatment removes suspended solids?
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Question 47 of 90
47. Question
Select the mismatch:
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Question 48 of 90
48. Question
What is the criterion for DNA fragments movement on agarose gel during gel electrophoresis?
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Question 49 of 90
49. Question
In Bougainvillea thorns are the modification of:
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Question 50 of 90
50. Question
The association of histone H1 with a nucleosome indicates:
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Question 51 of 90
51. Question
A temporary endocrine gland in the human body is:
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Question 52 of 90
52. Question
Select the mismatch:
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Question 53 of 90
53. Question
GnRH, a hypothalamic hormone, needed in reproduction, acts on:
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Question 54 of 90
54. Question
A gene whose expression helps to identify transformed cell is known as:
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Question 55 of 90
55. Question
Presence of plants arranged into well defined vertical layers depending on their height can be seen best in
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Question 56 of 90
56. Question
Functional megaspore in an angiosperm develops into:
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Question 57 of 90
57. Question
DNA replication in bacteria occurs:
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Question 58 of 90
58. Question
Which among these is the correct combination of aquatic mammals?
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Question 59 of 90
59. Question
Coconut fruit is a
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Question 60 of 90
60. Question
Double fertilization is exhibited by:
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Question 61 of 90
61. Question
Which of the following components provides sticky character to the bacterial cell?
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Question 62 of 90
62. Question
Life cycle of Ectocarpus and fucus respectively are:
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Question 63 of 90
63. Question
Which one of the following is related to Ex-situ conservation of threatened animals and plants?
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Question 64 of 90
64. Question
Good vision depends on adequate intake of carotene rich food.
Select the best option from the following statements.- Vitamin A derivatives are formed from carotene
- The photo-pigments are embedded in the membrane discs of the inner segment
- Retinal is a derivative of Vitamin A.
- Retinal is a light absorbing part of all the visual photo-pigments
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Question 65 of 90
65. Question
Thalassemia and sickle cell anemia are caused due to a problem in globin molecule synthesis. Select the correct
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Question 66 of 90
66. Question
Which of the following are not polymeric?
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Question 67 of 90
67. Question
A disease caused by an autosomal primary non- disjunction is:
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Question 68 of 90
68. Question
With reference to factors affecting the rate of photosynthesis, which of the following statements is not correct?
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Question 69 of 90
69. Question
Fruit and leaf drop at early stages can be prevented by the application of:
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Question 70 of 90
70. Question
The region of Biosphere Reserve which is legally protected and where no human activity is allowed is known as:
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Question 71 of 90
71. Question
In case of poriferans, the spongocoel is lined with flagellated cells called:
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Question 72 of 90
72. Question
A decrease in blood pressure / volume will not cause the release of:
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Question 73 of 90
73. Question
A dioecious flowering plant prevents both:
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Question 74 of 90
74. Question
Which of the following facilitates opening of stomatal aperture?
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Question 75 of 90
75. Question
The DNA fragments separated on an agarose gel can be visualised after staining with
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Question 76 of 90
76. Question
Which statement is wrong for Kreb’s cycle ?
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Question 77 of 90
77. Question
Mycorrhizae are the example of
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Question 78 of 90
78. Question
The pivot joint between atlas and axis is a type of
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Question 79 of 90
79. Question
Which of the following is correctly matched for the product produced by them?
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Question 80 of 90
80. Question
Frog’s heart when taken out of the body continues to beat for some time
Select the best option from following statements- Frog is a poikilotherm.
- Frog does not have any coronary circulation.
- Heart is “Myogenic” in nature.
- heart is autoexcitable.
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Question 81 of 90
81. Question
Myelin sheath is produced by
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Question 82 of 90
82. Question
Capacitation occurs in
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Question 83 of 90
83. Question
The morphological nature of the edible part of coconut is
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Question 84 of 90
84. Question
Which of the following is made up of dead cells
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Question 85 of 90
85. Question
In case of a couple where the male is having a very low sperm count, which technique will be suitable for fertilisation
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Question 86 of 90
86. Question
Which of the following RNAs should be most abundant in animal cell
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Question 87 of 90
87. Question
The vascular cambium normally gives rise to
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Question 88 of 90
88. Question
Which of the following options gives the correct sequences of events during mitosis?
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Question 89 of 90
89. Question
Which of the following option best represents the enzyme composition of pancreatic juice?
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Question 90 of 90
90. Question
Attractants and rewards are required for: