Which one of the following pairs is not correctly matched?

Options

A. Streptococcus - Clot buster
B. Papaver - Tranquillizers
C. Trichoderma - Biocontrol agent
D. Rhizobium - Biofertilizer

Answer

To solve the question, "Which one of the following pairs is not correctly matched?", we will analyze each pair provided in the options.

### Step-by-Step Solution:

1. **Identify the Pairs**: We need to look at each pair given in the options and determine if they are correctly matched or not.

2. **Analyze the First Pair**:
- **Streptococcus and Clot Buster**:
- Streptococcus is a Gram-positive bacterium that produces an enzyme called streptokinase, which helps dissolve blood clots.
- This pair is correctly matched.

3. **Analyze the Second Pair**:
- **Pepperwort and Tranquilizers**:
- Pepperwort refers to the plant known as "poppy plant," which is associated with barbiturates, not tranquilizers.
- Tranquilizers are drugs used to treat anxiety and insomnia, while barbiturates are a class of drugs that can induce sleep.
- This pair is incorrectly matched.

4. **Analyze the Third Pair**:
- **Trichoderma and Biocontrol Agent**:
- Trichoderma is a genus of fungi that is used as a biocontrol agent to manage plant diseases and pests.
- This pair is correctly matched.

5. **Analyze the Fourth Pair**:
- **Rhizobium and Biofertilizer**:
- Rhizobium is a genus of bacteria that forms a symbiotic relationship with legumes, fixing atmospheric nitrogen into a form that plants can use.
- This pair is correctly matched.

6. **Conclusion**:
- The only pair that is not correctly matched is **Pepperwort and Tranquilizers**. Therefore, the answer to the question is this pair.

### Final Answer:
The incorrect pair is **Pepperwort and Tranquilizers**.

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