Home
Class 12
BIOLOGY
The immature male germ cells undergo div...

The immature male germ cells undergo division to produce sperms by the process of spermatogenesis. Choose the correct one with reference to above.

A

Spermatogonia have 46 chromosomes and always undergo meiotic cell division

B

Primary spermatocytes divide by mitotic cell division

C

Secondary spermatocytes have 23 chromosomes and undergo second meiotic division

D

Spermatozoa are transformed into spermatids

Text Solution

Verified by Experts

The correct Answer is:
C

Secondary spermatocytes are formed by meiosis-I (i.e., reductional division) of diploid primary spermatocyte so have 23 chromosomes (haploid in nature).
Promotional Banner

Topper's Solved these Questions

  • HUMAN REPRODUCTION

    MODERN PUBLICATION|Exercise NCERT FILE (EXEMPLAR PROBLEMS (B)VERY SHORT ANSWER TYPE QUESTION)|15 Videos
  • HUMAN REPRODUCTION

    MODERN PUBLICATION|Exercise NCERT FILE (EXEMPLAR PROBLEMS (C ) SHORT ANSWER TYPE QUESTION)|10 Videos
  • HUMAN REPRODUCTION

    MODERN PUBLICATION|Exercise NCERT FILE (EXERCISE QUESTION) TRUE OR FALSE|7 Videos
  • HUMAN HEALTH AND DISEASES

    MODERN PUBLICATION|Exercise Chapter Practice Test|2 Videos
  • MICROBES IN HUMAN WELFARE

    MODERN PUBLICATION|Exercise CHAPTER PRACTICE TEST (Long Answer Type Question )(Five marks each)(Section -E)|8 Videos

Similar Questions

Explore conceptually related problems

How many pollen mother cells should undergo meiotic division to produce 64 pollen grains?

Germinal epithelium located in walls of______ undergoes constant divisions to produce spermtagonia.Choose the option that fills the blank correctly.

An ideal gas undergoes isothermal process from some initial state i to final state f . Choose the correct alternatives.

Secondary spermatocytes undergo second meiotic division during spermatogenesis to produce

(a) Name the hormone that initiates spermatogenesis in humans. Describe the process of spermatogenesis in spermatogenesis in sequence mentioning the ploidy of the cells at each step. (b) Draw the diagram of a mature human sperm and label the parts that : (i) helps it reaching to the ovum . (ii) providing energy for it to reach the ovum. (iii) helping it to gain entry into the ovum.

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?

Secondary spermatocytes undergo second meiotic division during spermatogenesis to produce.