Question

The number of chromosomes in a primary spermatocyte is

• A. Same as in spermatid
• B. Same as in oogonia
• C. Same as that in spermatogonium
• D. Same as in secondary spermatocyte

Answer 1

Answer: (C)

Same as that in spermatogonium

Spermatogonium is the male germinal cells which are present in the seminiferous tubules. These cells are diploid in nature. Thus, there are 46 chromosomes in these cells. These cells divide mitotically to form the primary spermatocyte. Since the primary spermatocyte is formed by mitosis, the number of chromosomes remains same as that in the spermatogonium. The primary spermatocyte then undergoes meiotic division to form the secondary spermatocytes by meiosis I and the spermatozoa by meiosis II.

Thus, the correct answer is 'Same as that in spermatogonium'.