71. Hormone for pregnancy test is
(a) ADH
(b) FSH
(C) PRL
(d) HCG
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72. Who discovered the fossil Archaeopteryx?
(a) Andreas Wagner
(b) Cuvier
(c) Galton Heftet
(d) Linnaeus Carl
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73. Vitamin A is a precursor for synthesis of
(a) somatostatin
(b) retinene
(c) scotopsin
(d) the pigment of the iris
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74. After a meal rich in carbohydrates is ingested, insulin secretion is probably stimulated by
(a) GLP-1 (7-36) amide
(b) CCK
(c) serotonin
(d) Interleukin-5 (IL-5)
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75. Castration cells are found in the
(a) anterior pituitary
(b) hypothalamus
(c) uterus
(d) prostate
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76. Most of the injected radioactive iodine in a mammal would accumulate in
(a) bone
(b) liver
(c) thymus
(d) thyroid
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77. Which of the following pumps is a responsible for initiating muscle contraction through depolarization of muscle cell membrane?
(a) Na+ pump
(b) K+ pump
(c) Ca++ pump
(d) Mg** pump
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78. Which of the following hormones is not made up of a and B subunits?
(a) LH
(b) FSH
(c) TSH
(d) Prolactin
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79. Renin is secreted by the
(a) cells in the macula densa
(b) cells in the proximal tubules
(c) cells in the distal tubules
(d) juxtaglomerular cells
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80. Which of the following is not correctly matched?
(a) Dipeptide-Two peptide bonds
(b) Triacylglycerol-Ester linkage
(c) Linoleic acid-Unsaturated fatty acid
(d) Monosaccharide-Galactose
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81. The only gas in the atmosphere that can absorb the sun’s dangerous radiation is
(a) carbon dioxide
(b) ozone
(c) nitrogen
(d) nitrous oxide
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82. What is carrying capacity?
(a) Minimum number of individuals that can sustain in a particular environment
(b) Maximum number of individuals that can sustain in a particular environment
(c) Both (a) and (b)
(d) None of the above
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83. When a population first increases slowly, then rapidly, and finally becomes constant; the population growth curve will be
(a) J-shaped
(b) S-shaped
(c) Both J-shaped and S-shaped
(d) None of the above
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84. The molecule of chlorofluorocarbon (CFC) breaks down in the stratosphere into chlorine, fluorine and carbon atoms by
(a) chemical activity
(b) ultraviolet activity
(c) fission
(d) fusion
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85. The zone of invagination is the
(a) prospective ectoderm
(b) prospective mesoderm
(c) prospective endoderm
(d) None of the above
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86. Which one is not a vestigial organ in man?
(a) Vermiform appendix
(b) Plica semilunaris
(c) Ear muscles with
(d) Epiglottis
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87. The aged erythrocytes are destroyed by
(a) spleen and liver
(b) heart and lung
(c) kidney
(d) gallbladders
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88. In the embryonic development of frog, the blastopore forms the future
(a) mouanu
(b) anus
(c) nares
(d) tympanum
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89. Blastodisc is constituted by its
(a) hypoblast and mesodermie
(b) epiblast and hypoblast
(c) epiblast and mesoderm
(d) epiblast and trophoblast
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90. Which of the following membrane that protects the developing embryo from desiccation?
(a) Amnion
(b) Chorion
(c) Allantois
(d) Yolk sac
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