The first meiotic division during. Spermatogenesis takes place when :

Options

A. Primary spermatocytes divide to from secondary spermatocytes
B. Secondary spermatocytes divide to from spermatids
C. Spermatogonia division to from primary spermatocytes
D. Spermatids to spermatozoa

Answer

To solve the question regarding when the first meiotic division during spermatogenesis takes place, we can follow these steps:

### Step-by-Step Solution:

1. **Understand Spermatogenesis**:
- Spermatogenesis is the process by which sperm cells are produced in the male reproductive system, specifically in the testes.

2. **Identify the Key Cells Involved**:
- The process starts with **spermatogonia**, which are the immature germ cells.
- Spermatogonia undergo mitosis to produce more spermatogonia and then differentiate into **primary spermatocytes**.

3. **First Meiotic Division**:
- The first meiotic division occurs when **primary spermatocytes** undergo meiosis to form **secondary spermatocytes**.
- This is a crucial step because it marks the transition from diploid cells (2n) to haploid cells (n).

4. **Subsequent Steps**:
- After the first meiotic division, the secondary spermatocytes undergo a second meiotic division to produce **spermatids**.
- Finally, spermatids differentiate into mature sperm cells, known as **spermatozoa**.

5. **Conclusion**:
- Therefore, the first meiotic division during spermatogenesis takes place when primary spermatocytes divide to form secondary spermatocytes.

### Final Answer:
The first meiotic division during spermatogenesis takes place when **primary spermatocytes divide to form secondary spermatocytes**.

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