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Go through the following statements:- ...

Go through the following statements:-
(i). Primary spermatocytes undergo mitotic divisions to produce secondary spermatocytes
(ii). Sperms released from the seminiferous tubules are fuly mature and motile
(iii) The head of sperm possesses may mitochondria which produce energy for the movement of tail
(iv) The human male ejaculates about 20-30 million sperms during a cuitus
which of these are correct?

A

(i), (ii) & (iii)

B

(ii), (iii) & (iv)

C

(i), (iii) & (iv)

D

All are wrong

Text Solution

Verified by Experts

The correct Answer is:
D
Primary spermatocytes undergo first meiotic division to produce secondary spermatocyte. Sperms become full motile & matrue in accessory ducts. Mitochondria are present in the middle piece of sperm. Single ejaculate contain 200-300 million sperms.
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TRUEMAN BIOLOGY-HUMAN REPRODUCTION-Multiple Choice Questions
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  2. Go through the following statements (i) Androgens are produced by th...

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  3. Go through the following statements:- (i). Primary spermatocytes und...

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  4. Go through the following statements (i) Mammary glands are modified ...

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  5. Go through the following statement:- (i) In both pre-pubertal and po...

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  6. Go through the following statements (i) HCG from placenta stimulates...

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  7. Match list-I (cell type) with list-II (characteristic) and select the ...

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  8. Both corpus lutea and macula lutea are

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  9. The phase of menstrual cycle in humans that lasts for 7-8 days, is

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  10. Which one of the following statements with regard to embryonic develop...

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  11. Assertion:Holoblastic cleavage with almost equal sized blastomeres is ...

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  12. Which one of the following events is correctly matched with the time p...

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  13. Which of the following has the longest gestation period:-

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  14. Go through the following diagram carefully which of the following opti...

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  15. Secretion of GnRH would lead to

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  16. Fid the odd one out

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  17. Assertion: If scrotal sacs removed, testosterone is still found in the...

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  18. The entry of additional sperms into the ovum is prevented because of:-

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  19. Ovulation in the human female normally takes place during the menstrua...

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  20. Which part of ovary in mammals acts as an endocrine gland after ovulat...

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