Name the fungus used for steroid synthesis

Options

A. Aspergillus oryzae
B. Torulopsis utilis
C. Rhizopus stolonifer
D. Neurospora crassa

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks for the name of a fungus that is used for steroid synthesis. Steroids are organic compounds that play various roles in the body, including hormone production.

2. **Identifying the Options**: The options provided are:
- A) Aspergillus oryzae
- B) Torreolopsis utilis
- C) Rhizopus stolonifer
- D) Neurospora crassa

3. **Analyzing Each Option**:
- **Aspergillus oryzae**: This fungus is primarily used in fermentation processes, such as in the production of soy sauce and sake, but it is not primarily known for steroid synthesis.
- **Torreolopsis utilis**: This fungus is not widely recognized for steroid synthesis.
- **Rhizopus stolonifer**: This fungus is known for its role in the hydroxylation process, which is crucial for steroid synthesis. It was demonstrated by scientists that this fungus can introduce oxygen into steroid molecules.
- **Neurospora crassa**: This fungus is mainly used in genetic studies and is not known for steroid synthesis.

4. **Conclusion**: Based on the analysis, the fungus that is used for steroid synthesis is **Rhizopus stolonifer**. This fungus is capable of hydroxylation, which is necessary for the formation of steroid hormones.

5. **Final Answer**: The correct answer is **C) Rhizopus stolonifer**.

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