Question

How many secondary spermatocytes will be required to form 400 spermatozoa?

• A. 100
• B. 200
• C. 40
• D. 400

Answer 1

The correct option is B 200

From spermatogonium, primary spermatocyte is formed and by mitosis. Then from one primary spermatocyte, two secondary spermatocytes are formed by meiosis followed by the formation of spermatids and finally 4 spermatozoa. As each secondary spermatocyte results in the formation of two spermatozoa, 200 secondary spermatocytes will give rise to 400 spermatozoa.
Thus, the correct answer is option B.