Question

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

Answer 1

Answer: (C)

Spermatogonia are diploid cells on the inside wall of seminiferous tubules that multiply by mitotic divisions. Some of the spermatogonia called primary spermatocyte undergo meiosis-l to give rise to secondary spermatocytes (haploid). Each secondary spermatocyte undergoes meiosis-ll to give rise to two haploid spermatids which are transferred to spermatozoa by spermiogenesis.