Assertion :- Lac opertor is present only in lac operon & it interact specifically with lac repressor only.
Reason : Each operon has its specific operator & specific repressor.

Options

A. If both Assertion & Reason are True & the Reason is a correct explanation of the Assertion.
B. If both Assertion & Reason are trur but Reason is not a correct explanation of the Assertion.
C. If Assertion is True but the Reason is Flase.
D. If both Assertion & Reason are false.

Answer

To solve the question, we need to analyze both the assertion and the reason provided.

### Step-by-Step Solution:

1. **Understanding the Assertion**:
- The assertion states that the lac operator is present only in the lac operon and interacts specifically with the lac repressor.
- This is true because the lac operon is a specific genetic regulatory system in E. coli that controls the metabolism of lactose. The lac operator is a segment of DNA that the lac repressor binds to, preventing transcription when lactose is not present.

2. **Understanding the Reason**:
- The reason states that each operon has its specific operator and specific repressor.
- This is also true. In prokaryotic cells, each operon is regulated by its own operator and repressor proteins. For example, the trp operon has a different operator and repressor than the lac operon.

3. **Evaluating the Relationship**:
- We need to determine if the reason correctly explains the assertion.
- Since the assertion is about the lac operon specifically, and the reason discusses the general principle that each operon has its own specific operator and repressor, the reason does indeed provide a correct explanation for the assertion.

4. **Conclusion**:
- Both the assertion and the reason are true, and the reason is the correct explanation of the assertion. Therefore, the correct answer is that both the assertion and reason are true, and the reason explains the assertion.

### Final Answer:
The correct answer is: **Option 1** - Both assertion and reason are true, and the reason is the correct explanation of the assertion.

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