The mycelium is aseptate and coenocytic in:-

Options

A. Phycomycetes
B. Basidiomycetes
C. Deuteromycetes
D. Ascomycetes

Answer

To solve the question, "The mycelium is aseptate and coenocytic in:", we need to analyze the characteristics of the different groups of fungi mentioned in the options.

### Step-by-Step Solution:

1. **Understand the Terms**:
- **Aseptate**: This means that the mycelium does not have septa (cross-walls) dividing the hyphae.
- **Coenocytic**: This refers to a type of mycelium that is multinucleate and lacks septa, forming a continuous mass of cytoplasm.

2. **Review the Options**:
- **Phycomycetes**: This group includes the algal fungi, which typically have aseptate and coenocytic mycelium.
- **Basidiomycetes**: This group includes mushrooms and has septate mycelium.
- **Deuteromycetes**: Also known as imperfect fungi, they generally have septate mycelium.
- **Ascomycetes**: This group includes sac fungi and also has septate mycelium.

3. **Identify the Correct Group**:
- Among the options, **Phycomycetes** is the only group known for having aseptate and coenocytic mycelium.

4. **Conclusion**:
- Therefore, the correct answer is **Phycomycetes**.

### Final Answer:
The mycelium is aseptate and coenocytic in **Phycomycetes**.

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