Sexual reproduction in fungi occurs by all of the following except

Options

A. oospores
B. ascoppores
C. zoospores
D. basidiospores.

Explanation

To solve the question regarding sexual reproduction in fungi, we need to analyze the options provided and understand the types of spores involved in the reproductive processes of fungi.

### Step-by-Step Solution:

1. **Understanding Fungal Reproduction**:
- Fungi can reproduce both sexually and asexually. Sexual reproduction involves the formation of specialized spores after meiosis.

2. **Identifying Types of Spores**:
- **Ospores**: These are sexually produced spores formed in some fungi.
- **Ascospores**: These are also sexually produced spores, specifically formed in the Ascomycetes group of fungi.
- **Basidiospores**: These are sexually produced spores found in Basidiomycetes fungi.
- **Zoospores**: These are motile spores that are produced asexually and are not involved in sexual reproduction.

3. **Analyzing the Options**:
- From the options given:
- Ospores: Sexual reproduction
- Ascospores: Sexual reproduction
- Basidiospores: Sexual reproduction
- **Zoospores**: Asexual reproduction

4. **Conclusion**:
- The question asks for the option that does not occur in sexual reproduction in fungi. Since zoospores are produced asexually, the correct answer is **zoospores**.

### Final Answer:
The correct option is **zoospores**.

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