Which type of asexual reproduction is observed in Hydra ?

Options

A. Exogenous budding
B. Endogenous budding
C. Gemmule formation
D. Both (1) and (3)

Answer

### Step-by-Step Text Solution:

1. **Understanding Asexual Reproduction**: Asexual reproduction is a mode of reproduction that does not involve the fusion of gametes. It results in offspring that are genetically identical to the parent.

2. **Types of Asexual Reproduction in Hydra**: In Hydra, there are two primary types of asexual reproduction: fragmentation and budding.

3. **Fragmentation**:
- In fragmentation, the body of the parent Hydra breaks into two distinct pieces.
- Each piece can then develop into a new individual, effectively producing offspring from the original parent.

4. **Budding**:
- The second type of asexual reproduction in Hydra is budding.
- In budding, a small outgrowth forms on the body of the parent Hydra.
- This outgrowth undergoes mitosis, developing into a miniature individual.
- Eventually, this miniature individual separates from the parent body and begins to live independently.

5. **Exogenous Budding**:
- The budding process in Hydra is often referred to as exogenous budding because the new individual forms on the outside of the parent’s body.
- This distinguishes it from other forms of budding that might occur internally.

6. **Conclusion**: The two types of asexual reproduction observed in Hydra are fragmentation and exogenous budding. However, the more commonly recognized method is exogenous budding.