Hundred zygospores alternate with empty cells in Spirogyra in conjugation. The total number of daughter filaments formed will be

Options

A. Scalariform, 400
B. Lateral, 100
C. Lateral, 400
D. Scalariform, 100

Answer

To solve the question regarding the total number of daughter filaments formed from 100 zygospores in Spirogyra during conjugation, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Conjugation in Spirogyra**:
- Spirogyra reproduces sexually through a process called conjugation, where two filaments come together and form zygospores.

2. **Formation of Zygospores**:
- During conjugation, male and female gametes fuse to form a zygote, which develops into a zygospore.

3. **Zygospore to Daughter Filaments**:
- Each zygospore eventually germinates to form a new filament of Spirogyra. Importantly, one zygospore gives rise to one daughter filament.

4. **Calculating the Number of Daughter Filaments**:
- Given that there are 100 zygospores, and each zygospore forms one daughter filament, the total number of daughter filaments will be equal to the number of zygospores.

5. **Conclusion**:
- Therefore, if there are 100 zygospores, the total number of daughter filaments formed will also be 100.

6. **Identifying the Type of Conjugation**:
- In this case, since the zygospores alternate with empty cells, this indicates that the conjugation is of the lateral type, where the same filament contributes to the formation of zygospores.

7. **Final Answer**:
- The total number of daughter filaments formed will be **Lateral 100**.