Select the correct statement for zygomycetes.

Options

A. Sexual reproduction occurs through gametangial copulation and spermatization
B. Form non-motile mitospores called aplanospores present inside the sporangia
C. Azygospore is site of meiosis and gives rise to germ sporangium
D. Failure of fusion of gametangia results in the formation of parthenogenetically produces zoospore

Answer

### Step-by-Step Solution:

1. **Understanding Zygomycetes**:
- Zygomycetes are a class of fungi that include organisms such as bread molds, with *Rhizopus stolonifer* being a notable example.

2. **Reproductive Methods**:
- Zygomycetes can reproduce both asexually and sexually.
- Asexual reproduction typically occurs through the formation of sporangiospores.

3. **Sexual Reproduction**:
- Sexual reproduction in zygomycetes occurs under unfavorable environmental conditions.
- This process involves structures called gametangia, where gametes are formed.

4. **Correct Statement Identification**:
- The question asks for the correct statement regarding zygomycetes.
- The statement "sexual reproduction occurred through gametangia, copulation, and spermatization" is accurate and describes the sexual reproduction process in zygomycetes.

5. **Elimination of Incorrect Statements**:
- Other statements regarding the presence of non-motile mitospores (allenospores), azygospores, and parthenogenetic reproduction are incorrect as they do not accurately describe zygomycetes.

6. **Conclusion**:
- Therefore, the correct statement about zygomycetes is that sexual reproduction occurs through gametangial copulation and spermatization.

### Final Answer:
The correct statement for zygomycetes is: "Sexual reproduction occurred through gametangia, copulation, and spermatization."

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