The hormone responsible for inducing spermatogenesis and oogenesis is

Options

A. FSH
B. estrogen
C. LH
D. androgen

Explanation

**Step-by-Step Solution:**

1. **Understanding the Processes:**
- Spermatogenesis refers to the formation of male gametes (sperm).
- Oogenesis refers to the formation of female gametes (ova or eggs).

2. **Identifying the Hormones:**
- The question asks for the hormone responsible for inducing both spermatogenesis and oogenesis.
- The options provided are:
1. FSH (Follicle Stimulating Hormone)
2. Estrogen
3. LH (Luteinizing Hormone)
4. Androstenedione

3. **Role of FSH:**
- FSH is produced by the anterior pituitary gland.
- It plays a crucial role in stimulating the development of ovarian follicles in females (oogenesis) and the production of sperm in males (spermatogenesis).

4. **Evaluating Other Options:**
- Estrogen is primarily involved in the regulation of the female reproductive system and does not directly induce spermatogenesis.
- LH is involved in triggering ovulation and stimulating testosterone production but does not directly induce spermatogenesis.
- Androstenedione is an androgen hormone and does not play a role in oogenesis.

5. **Conclusion:**
- Based on the roles of these hormones, the hormone responsible for inducing both spermatogenesis and oogenesis is FSH.

**Final Answer: FSH (Follicle Stimulating Hormone)**

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