Question

The number of spermatozoa, a single primary spermatocyte ultimately produces in spermatogenesis, is

• A. One
• B. Two
• C. Four
• D. Eight

Answer 1

The correct option is C Four

The number of spermatozoa, a single primary spermatocyte ultimately produces in spermatogenesis, is four.

Spermatogenesis is the origin and development of the sperm cells within the male reproductive organs, the testes. The initial cells in this pathway are called spermatogonia, which yield primary spermatocytes by mitosis. The primary spermatocyte divides meiotically (meiosis I) into two secondary spermatocytes; each secondary spermatocyte divides into two spermatids by Meiosis II. These develop into mature spermatozoa, also known as sperm cells. Thus, the primary spermatocyte gives rise to two cells, the secondary spermatocytes, and the two secondary spermatocytes by their subdivision produce four spermatozoa.