Which of the following undergoes spermiogenesis :
(a) Spermatids
(b) Spermatogonia
(c) Primary spermatocytes
(d) Secondary spermatocytes

Options

A. Spermatids
B. Spermatogonia
C. Primary spermatocytes
D. Secondary spermatocytes

Answer

To solve the question "Which of the following undergoes spermiogenesis?" we need to analyze each option provided:

1. **Understanding Spermiogenesis**:
- Spermiogenesis is the final stage of spermatogenesis, where spermatids undergo transformation into mature spermatozoa (sperm). This process involves significant morphological changes, including the formation of a tail and condensation of the nucleus.

2. **Analyzing the Options**:
- **(a) Spermatids**: These are the cells that directly undergo spermiogenesis. They are the result of meiosis and will mature into spermatozoa.
- **(b) Spermatogonia**: These are the stem cells that undergo mitosis to produce primary spermatocytes. They do not undergo spermiogenesis.
- **(c) Primary spermatocytes**: These cells undergo meiosis to form secondary spermatocytes and do not directly undergo spermiogenesis.
- **(d) Secondary spermatocytes**: These cells are formed from primary spermatocytes after the first meiotic division. They undergo meiosis to form spermatids but do not undergo spermiogenesis themselves.

3. **Conclusion**:
- Based on the definitions and processes involved, the only option that undergoes spermiogenesis is **(a) Spermatids**.

Thus, the answer to the question is **(a) Spermatids**.