Mushroom gland in cockroach is located in

Options

A. `2^(nd)-5^(th)` segments
B. `3^(rd)-5^(th)` segments
C. `6^(th)-7^(th)` segments
D. `7^(th)-8^(th)` segments

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks about the location of the mushroom gland in a cockroach. It is important to identify the specific segments of the cockroach's body where this gland is found.

2. **Identifying the Gland**: The mushroom gland is an accessory reproductive gland in male cockroaches. It plays a significant role in the reproductive system.

3. **Locating the Gland**: The mushroom gland is specifically located in the 6th and 7th abdominal segments of the male cockroach. This is a key detail that needs to be noted.

4. **Understanding the Structure**: The mushroom gland consists of two types of tubules:
- **Utricoli Majors**: These are the major or peripheral tubules.
- **Utricoli Breviars**: These are the shorter tubules.

5. **Function of the Gland**: The tubules of the mushroom gland are involved in forming the inner layer of the spermatophore and also play a role in nourishing the sperm.

6. **Evaluating the Options**: The options provided in the question are:
- 2nd and 5th segments
- 3rd and 5th segments
- 6th and 7th segments
- 7th and 8th segments
After analyzing the information, the correct answer is the 6th and 7th segments.

7. **Final Answer**: Therefore, the mushroom gland in cockroach is located in the **6th and 7th abdominal segments**.

---