If a fungal thallus has both male and female reproductive structures, it will be called

Options

A. heterothallic
B. homothallic
C. dioecious
D. monoecious.

Answer

To solve the question regarding the classification of a fungal thallus that possesses both male and female reproductive structures, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Fungal Thallus**:
- A fungal thallus is a body structure of fungi that does not have differentiated leaves and stems. It is a simple structure that can perform various functions.

2. **Identifying Reproductive Structures**:
- Fungi can have different reproductive structures. If a thallus contains both male and female reproductive structures, it indicates a specific type of reproductive strategy.

3. **Defining Key Terms**:
- **Heterothallic**: Refers to fungi that have separate male and female thalli. This means that one thallus will have only male reproductive structures, while another will have only female structures.
- **Homothallic**: Refers to fungi that have both male and female reproductive structures on the same thallus. This means that a single thallus can produce both types of gametes.
- **Dioecious**: This term is typically used for plants and animals, indicating that individual organisms are either male or female, but not both.
- **Monoecious**: Similar to dioecious, but refers to organisms that have both male and female reproductive organs on the same individual.

4. **Conclusion**:
- Since the question specifies that the fungal thallus has both male and female reproductive structures, the correct term to describe this condition is **homothallic**.

### Final Answer:
The fungal thallus that has both male and female reproductive structures is called **homothallic**.

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