In the life cycle of ascomycetes and basidomycetes cells are

Options

A. Monokaryotic
B. Dikaryotic
C. both
D. None

Answer

To answer the question regarding the life cycle of Ascomycetes and Basidiomycetes, we will follow these steps:

### Step-by-Step Solution:

1. **Understanding Ascomycetes and Basidiomycetes**:
- Ascomycetes and Basidiomycetes are two major groups of fungi classified based on their reproductive structures and methods of spore production.

2. **Identifying Cell Types**:
- In the life cycle of these fungi, we need to determine the type of cells present in their fruiting bodies.

3. **Monokaryotic vs. Dikaryotic**:
- Monokaryotic cells contain a single nucleus, while dikaryotic cells contain two nuclei.
- In the context of Ascomycetes and Basidiomycetes, we need to focus on the cells in their fruiting bodies.

4. **Fruiting Bodies of Ascomycetes**:
- In Ascomycetes, the spores are produced in structures called asci. Each ascus typically contains eight spores and is considered monokaryotic.

5. **Fruiting Bodies of Basidiomycetes**:
- In Basidiomycetes, spores develop on club-shaped structures called basidia. Each basidium has four projections and is also considered monokaryotic.

6. **Conclusion**:
- Since both Ascomycetes and Basidiomycetes have monokaryotic cells in their fruiting bodies, the correct answer to the question is that the cells are **monokaryotic**.

### Final Answer:
The cells in the life cycle of Ascomycetes and Basidiomycetes are **monokaryotic**.

---