Which of the following options not true ?

Options

A. In males, LH stimulates synthesis and secretion of androgens (Testosterone) from testis.
B. In males, FSH and androgens regulate spematogenesis
C. In female, LH induces ovulation of fully mature follicles (graafian follicles), and maintains corpus luteum
D. FSH is produced in only male

Answer

To determine which of the following options is not true, we will analyze each statement provided in the question.

### Step-by-Step Solution:

1. **Statement Analysis**:
- **Statement 1**: "In males, LH stimulates synthesis and secretion of androgen from testes."
- This statement is true. Luteinizing hormone (LH) stimulates Leydig cells in the testes to produce testosterone, which is an androgen.

2. **Statement Analysis**:
- **Statement 2**: "In females, FSH and androgen regulate spermatogenesis."
- This statement is misleading. Follicle-stimulating hormone (FSH) is involved in the development of ovarian follicles in females, not spermatogenesis, which occurs in males. Therefore, this statement is not true.

3. **Statement Analysis**:
- **Statement 3**: "In females, LH induces ovulation of fully mature follicles and maintains corpus luteum."
- This statement is true. LH triggers ovulation and helps maintain the corpus luteum after ovulation.

4. **Statement Analysis**:
- **Statement 4**: "FSH is produced only in males."
- This statement is false. FSH is produced in both males and females. In males, it stimulates Sertoli cells for spermatogenesis, while in females, it stimulates ovarian follicle development.

5. **Conclusion**:
- The incorrect statements are Statement 2 and Statement 4. However, since the question asks for one option that is not true, we can conclude that the answer is **Statement 2**.

### Final Answer:
The option that is not true is **Statement 2**: "In females, FSH and androgen regulate spermatogenesis."