NEETZoologyHuman Reproduction
Select the correct statement regarding spermatogenesis:
Options
- ASpermatogonia are diploid cells that undergo mitosis to form primary spermatocytes.
- BSecondary spermatocytes are diploid cells that undergo meiosis II to form spermatids.
- CSpermatids are diploid cells that mature into spermatozoa.
- DSpermiation is the process of the formation of spermatids from spermatogonia.
Correct answer
A. Spermatogonia are diploid cells that undergo mitosis to form primary spermatocytes.
Step-by-step solution
A is correct. Each spermatogonium is diploid and contains 46 chromosomes. B is incorrect. A primary spermatocyte completes the first meiotic division (reduction division) leading to formation of two equal, haploid cells called secondary spermatocytes, which have only 23 chromosomes each C is incorrect. The secondary spermatocytes undergo the second meiotic division to produce four equal, haploid spermatids D is incorrect.After spermiogenesis, sperm heads become embedded in the Sertoli cells, and are finally release