Sexual reproduction in Chlamydomonas is 4.

Options

A. Oogamous
B. Isogamous
C. Anisogamous
D. All (1), (2) & (3)

Answer

To answer the question about the types of sexual reproduction in Chlamydomonas, we can break down the information as follows:

### Step-by-Step Solution:

1. **Understanding Chlamydomonas**:
- Chlamydomonas is a genus of green algae that reproduces both asexually and sexually.

2. **Types of Sexual Reproduction**:
- Chlamydomonas exhibits three types of sexual reproduction: Oogamous, Isogamous, and Anisogamous.

3. **Oogamous Reproduction**:
- In Oogamous reproduction, there are two types of gametes:
- The female gamete is large and non-motile.
- The male gamete is small and motile.
- This type of reproduction is characterized by the fusion of a large, immobile egg with a smaller, mobile sperm.

4. **Isogamous Reproduction**:
- In Isogamous reproduction, the gametes are similar in size and shape.
- Both gametes are motile, which means they can move towards each other to facilitate fertilization.

5. **Anisogamous Reproduction**:
- Anisogamous reproduction is similar to Oogamous, but the distinction lies in the size of the gametes.
- The female gamete is larger and non-motile, while the male gamete is smaller and motile.
- This type involves the fusion of two dissimilar gametes.

6. **Conclusion**:
- Therefore, the types of sexual reproduction in Chlamydomonas include Oogamous, Isogamous, and Anisogamous.

### Final Answer:
Sexual reproduction in Chlamydomonas is of three types: Oogamous, Isogamous, and Anisogamous.

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