Phallic gland (conglobate gland) of cockroach mainly helps in

Options

A. formation of spermatophores
B. reproduction
C. growth
D. excretion

Answer

### Step-by-Step Solution:

1. **Identify the Gland**: The question refers to the phallic gland, also known as the conglobate gland, found in cockroaches.

2. **Understand the Location**: The phallic gland is located below the ejaculatory duct in the male reproductive system of the cockroach.

3. **Determine the Function**: The primary function of the phallic gland is to secrete the outer layer of the spermatophore, which is a structure that contains sperm.

4. **Analyze the Options**:
- **Option 1**: Formation of spermatophores - This is correct as the gland secretes the outer layer of the spermatophore.
- **Option 2**: Reproduction - While the gland plays a role in reproduction, it is specifically involved in the formation of spermatophores.
- **Option 3**: Growth - The phallic gland is not involved in growth.
- **Option 4**: Excretion - This gland does not have a role in excretion.

5. **Conclusion**: The most appropriate answer is that the phallic gland mainly helps in the formation of spermatophores.

### Final Answer:
The phallic gland (conglobate gland) of cockroach mainly helps in **the formation of spermatophores**.

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