Question

How many sperms are formed by 4 primary spermatocytes?

• A. 32
• B. 16
• C. 4
• D. 1

Answer 1

The correct option is B 16

The spermatogonia divide mitotically, and some of them undergo two rounds of mitosis, each forming 4 primary spermatocytes, each of which undergoes meiosis to produce 2 haploid secondary spermatocytes. Each secondary spermatocyte then undergoes mitosis to produce 2 spermatids, which eventually become 2 sperms. Each primary spermatocyte thus, produces 4 sperms. Hence 4 primary spermatocytes would produce 16 sperms.