71. Hormone for pregnancy test is
(a) ADH
(b) FSH
(C) PRL
(d) HCG
72. Who discovered the fossil Archaeopteryx?
(a) Andreas Wagner
(b) Cuvier
(c) Galton Heftet
(d) Linnaeus Carl
73. Vitamin A is a precursor for synthesis of
(a) somatostatin
(b) retinene
(c) scotopsin
(d) the pigment of the iris
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)
75. Castration cells are found in the
(a) anterior pituitary
(b) hypothalamus
(c) uterus
(d) prostate
76. Most of the injected radioactive iodine in a mammal would accumulate in
(a) bone
(b) liver
(c) thymus
(d) thyroid
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
78. Which of the following hormones is not made up of a and B subunits?
(a) LH
(b) FSH
(c) TSH
(d) Prolactin
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
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
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
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
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
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
85. The zone of invagination is the
(a) prospective ectoderm
(b) prospective mesoderm
(c) prospective endoderm
(d) None of the above
86. Which one is not a vestigial organ in man?
(a) Vermiform appendix
(b) Plica semilunaris
(c) Ear muscles with
(d) Epiglottis
87. The aged erythrocytes are destroyed by
(a) spleen and liver
(b) heart and lung
(c) kidney
(d) gallbladders
88. In the embryonic development of frog, the blastopore forms the future
(a) mouanu
(b) anus
(c) nares
(d) tympanum
89. Blastodisc is constituted by its
(a) hypoblast and mesodermie
(b) epiblast and hypoblast
(c) epiblast and mesoderm
(d) epiblast and trophoblast
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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