SPERMATOGENESIS IN HINDI biology zoology bsc1styearzoology bsczoology spermatogenesisnotes du

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. This amongst the following statements is incorrect. Human spermatozoa usually • (a) moves with the help of their tails • (b) contains enzyme in their head which aids in penetration of the ovum • (c) are released in large numbers after a few days of abstinence • (d) at a concentration of 1 million/ml of ejaculate will fertilize the ovum • Answer: (d) • 2. Polar bodies are formed during • (a) Oogenesis • (b) Spermatogenesis • (c) Gametogenesis • (d) Spermateleosis • Answer: (a) • 3. The correct sequence of cell stage in spermatogenesis is • (a) Spermatocytes – Spermatids – Spermatogonia – Spermatozoa • (b) Spermatogonia – Spermatids – Spermatocytes – Spermatozoa • (c) Spermatocytes – Spermatogonia – Spermatids – Spermatozoa • (d) Spermatogonia – Spermatocytes – Spermatids – Spermatozoa • Answer: (d) • 4. In spermatogenesis, the phases of maturation involve • (a) formation of spermatids from primary spermatocytes through meiosis • (b) Growth of spermatogonia into primary spermatocytes • (c) formation of spermatogonia from gonocytes through mitosis • (d) formation of oogonia from spermatocytes through meiosis • Answer: (a) • 5. This happens during spermatogenesis • (a) Meiosis • (b) Mitosis • (c) Meiosis and mitosis • (d) None of these • Answer: (c) • 6. The actual genetic section of sperm is its • (a) Acrosome • (b) Tail • (c) Middle piece • (d) Head • Answer: (d) • 7. The process of spermatogenesis is induced by • (a) TSH • (b) FSH • (c) MSH • (d) ACTH • Answer: (b) • 8. The number of spermatozoa, a single primary spermatocyte finally produced in spermatogenesis is • (a) 2 • (b) 4 • (c) 6 • (d) 8 • Answer: (b) • 9. The acrosome of sperm is formed from • (a) Mitochondria of spermatid • (b) Golgi complex of spermatid • (c) Nucleus of spermatid • (d) Centrosome of spermatid • Answer: (b) • 10. Which of the following cells is immortal? • (a) Glomerular cells • (b) Somatic cells • (c) Cells of pituitary • (d) Germ cells • Answer: (d) • ‪@ZOOLOGYNOTES‬

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