A fungus with hyphae containing nuclei from different genomes , the nuclei do not fuse and are without sex organ but produces sexual spore belongs to

Options

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

Answer

To solve the question regarding the classification of a fungus with specific characteristics, we can break it down into the following steps:

### Step 1: Understand the Characteristics of the Fungus
The fungus in question has hyphae containing nuclei from different genomes, which do not fuse. Additionally, it lacks sex organs but is capable of producing sexual spores.

### Step 2: Analyze the Options
We need to analyze the options provided to determine which group of fungi fits the description:
1. **Phycomycetes**: Typically, these fungi reproduce sexually and asexually, but they usually have a clear sexual reproduction phase involving fusion of nuclei.
2. **Zygomycetes**: These fungi also reproduce sexually and asexually, but they primarily undergo sexual reproduction when conditions are unfavorable, involving the fusion of nuclei.
3. **Deuteromycetes**: Known as "imperfect fungi," they do not have a known sexual reproduction stage and reproduce only asexually.
4. **Basidiomycetes**: This group can produce sexual spores without the fusion of nuclei and does not necessarily have sex organs.

### Step 3: Identify the Correct Group
Given the characteristics of the fungus:
- The presence of different genomes in the hyphae without fusion suggests a unique reproductive strategy.
- The ability to produce sexual spores without sex organs aligns with the behavior of Basidiomycetes.

### Conclusion
Based on the analysis, the correct answer is **Basidiomycetes**.

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