Which among the following is not the function of testes at puberty?

Options

A. Formation of germ cells
B. Secretion of testosterone
C. Development of placenta
D. Secretion of estrogen

Answer

To determine which among the following is not a function of the testes at puberty, we first need to understand the primary functions of the testes during this developmental stage.

### Step-by-Step Solution:

1. **Understanding the Role of Testes**:
The testes are male reproductive organs that play a crucial role during puberty. They are responsible for producing sperm and hormones, particularly testosterone.

2. **Functions of Testes at Puberty**:
- **Sperm Production**: The testes begin to produce sperm cells through a process called spermatogenesis.
- **Hormone Production**: The testes produce testosterone, which is responsible for the development of secondary sexual characteristics such as increased muscle mass, deepening of the voice, and growth of body hair.
- **Development of Secondary Sexual Characteristics**: Testosterone influences the development of features like facial hair, pubic hair, and changes in body structure.

3. **Identifying the Incorrect Function**:
To answer the question, we need to identify an option that does not relate to the functions of the testes during puberty. Common options might include functions unrelated to reproduction or hormonal changes, such as "producing milk" or "regulating body temperature," which are not functions of the testes.

4. **Conclusion**:
Based on the functions of the testes at puberty, any option that does not involve sperm production, hormone production, or development of secondary sexual characteristics would be the correct answer to the question.