The number of spermatozoa, a single primary spermatocyte finally produced inspermatogenesis is(a) 2(b) 4(c) 6(d) 8

To determine the number of spermatozoa ultimately produced from a single primary spermatocyte during spermatogenesis, we can analyze the process involved:

1. Understanding Spermatogenesis:

   • Spermatogenesis is the process by which male gametes, or spermatozoa, are produced. It begins with a primary spermatocyte.

2. Key Stages of Spermatogenesis:

   • A primary spermatocyte undergoes meiosis, which consists of two divisions: meiosis I and meiosis II.
   • Each primary spermatocyte, through meiosis I, divides to produce two secondary spermatocytes.
   • Each secondary spermatocyte, in turn, undergoes meiosis II to produce two spermatids.

3. Final Outcome:

   • Therefore, from one primary spermatocyte, after both meiotic divisions, we have:
     • 1 Primary Spermatocyte → 2 Secondary Spermatocytes → 4 Spermatids (each spermatid develops into a spermatozoa).

4. Conclusion:

   • The final count of spermatozoa produced from one primary spermatocyte is 4.

Final Answer

The number of spermatozoa produced from a single primary spermatocyte in spermatogenesis is 4 (b).