The correct sequence of spermatogenetic stages leading to the formation of sperms in a mature human testis…
The correct sequence of spermatogenetic stages leading to the formation of sperms in a mature human testis is :
Spermatogonia-spermatid-spermatocytesperms
Spermatocyte-spermatogonia-spermatidsperms
Spermatogonia-spermatocyte-spermatidsperms
Spermatid-spermatocyte-spermatogoniasperms
Solution
Explanation:
- Spermatogenesis is the process of sperm cell development in the testes. The sequence of stages is as follows:
1. Spermatogonia: These are the stem cells that divide by mitosis to form primary spermatocytes.
2. Spermatocytes: Primary spermatocytes undergo meiosis to form secondary spermatocytes, which then divide again to form spermatids.
3. Spermatids: These are immature sperm cells that undergo a process called spermiogenesis, where they mature into sperm.
4. Sperm: These are the fully developed male gametes.
Other options:
- Spermatocyte - Spermatogonia - Spermatid - Sperm: This sequence is incorrect as it places spermatocytes before spermatogonia.
- Spermatogonia - Spermatid - Spermatocyte - Sperm: This is incorrect because spermatids develop after spermatocytes, not before.
- Spermatid - Spermatocyte - Spermatogonia - Sperm: This is incorrect as the spermatogonia precede the spermatocytes.
Thus, the correct sequence is Spermatogonia - Spermatocyte - Spermatid - Sperm.