Asexual reproduction occurs by production of different types of spores'in algae. The most common type of spore is -

Options

A. Aplanospore
B. Zoospore
C. Hyphospore
D. Chlamydospores

Answer

To answer the question about the most common type of spore produced during asexual reproduction in algae, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Asexual Reproduction in Algae**:
- Algae can reproduce asexually through various methods, including the production of spores.

2. **Identifying Types of Spores**:
- The question provides four options: planospore, zoospore, hypospore, and chlamydospore. We need to evaluate these types of spores.

3. **Defining Each Type of Spore**:
- **Planospore**: Generally refers to non-motile spores.
- **Zoospore**: These are flagellated spores that are motile and can swim in water.
- **Hypospore**: This term is less commonly used and may refer to specific types of spores in certain algae.
- **Chlamydospore**: These are thick-walled resting spores that are typically not involved in asexual reproduction.

4. **Determining the Most Common Spore**:
- Among the options, zoospores are the most prevalent type of spore in algae that reproduce asexually. They are flagellated, allowing them to move and germinate into new algal plants.

5. **Conclusion**:
- Therefore, the most common type of spore produced during asexual reproduction in algae is **zoospore**.

### Final Answer:
The most common type of spore produced during asexual reproduction in algae is **zoospore**.

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