Which of the following antibiotics is not correctly matched with the source from which it is obtained ?

Options

A. `{:("Antibiotic","Source"),("Penicillin","Penicillium chrysogenum"):}`
B. `{:("Antibiotic","Source"),("Bacitracin","Bacillus licheniformis"):}`
C. `{:("Antibiotic","Source"),("Griseofulvin","Penicillium griseofulvum"):}`
D. `{:("Antibiotic","Source"),("Streptomycin","Bacillus griseus"):}`

Explanation

To determine which antibiotic is not correctly matched with its source, we will analyze each option provided in the question.

### Step-by-Step Solution:

1. **Identify the Antibiotics and Their Sources**:
- **Penicillin**: The source is **Penicillium chrysogenum**.
- **Bacitracin**: The source is **Bacillus licheniformis**.
- **Griseofulvin**: The source is **Penicillium griseofulvum**.
- **Streptomycin**: The source is **Bacillus griseus** (but this is incorrect).

2. **Evaluate Each Match**:
- **Penicillin**: Correctly matched with **Penicillium chrysogenum**.
- **Bacitracin**: Correctly matched with **Bacillus licheniformis**.
- **Griseofulvin**: Correctly matched with **Penicillium griseofulvum**.
- **Streptomycin**: Incorrectly matched. The correct source is **Streptomyces griseus**, not **Bacillus griseus**.

3. **Conclusion**:
- The antibiotic that is not correctly matched with its source is **Streptomycin**.

### Final Answer:
The antibiotic that is not correctly matched with its source is **Streptomycin** (it should be from **Streptomyces griseus**, not **Bacillus griseus**).

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