Differentiate between Homothallism and heterothallism.

Explanation

### Step-by-Step Solution

1. **Definition of Homothallism**:
- Homothallism refers to a condition in which hyphae (the filamentous structures of fungi) are genetically compatible. This means that the hyphae can fuse together to form zygospores.
- In homothalism, the compatible hyphae are typically found on two branches of the same mycelium.

2. **Definition of Heterothallism**:
- Heterothallism, on the other hand, requires the presence of two complementary mating types for sexual reproduction to occur. This means that two genetically distinct hyphae must come together to form zygospores.
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