Question

Q.:Select the correct sequence of stages of spermatogenesis in a human male.
(a) Spermatogonium → Spermatids → Spermatocytes → Spermatozoa
(b) Spermatogonium → Spennatocytes → Spermatids → Spermatozoa
(c) Spermatids → Spermatogonium → Spermatocytes → Spermatozoa
(d) Spermatocytes → Spermatogonium → Spermatids → Spermatozoa​

Answer 1

Answer:

In spermatogenesis, spermatozoa are produced by the mitosis and meiosis division of male primordial germ cells. The initial cells are spermatogonia, which produces 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. Thus, the correct answer is option D.

Explanation:

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