The formation of egg and sperm is affected by `

Options

A. LH
B. MSH
C. TSH
D. FSH

Answer

To answer the question regarding what affects the formation of egg and sperm, we can break down the information step by step:

### Step-by-Step Solution:

1. **Understanding the Question**: The question asks which hormone affects the formation of egg (in females) and sperm (in males).

2. **Identifying the Hormones**: The options given are LH (Luteinizing Hormone), MSH (Melanocyte-Stimulating Hormone), TSH (Thyroid-Stimulating Hormone), and FSH (Follicle Stimulating Hormone).

3. **Role of FSH in Females**: In females, Follicle Stimulating Hormone (FSH) plays a crucial role in the development of ovarian follicles. It stimulates the growth of these follicles, which are responsible for producing eggs.

4. **Role of FSH in Males**: In males, FSH acts on the Sertoli cells in the testes. This stimulation is essential for the process of spermatogenesis, which is the production of sperm.

5. **Conclusion**: Since FSH is responsible for the formation of both eggs and sperm, it is the hormone that affects their formation.

6. **Final Answer**: The correct answer to the question is FSH (Follicle Stimulating Hormone).