Assertion: Presence of restriction sites of many enzymes within the vecotr is not desirable
Reason :It will generate several fragments which will complicate the process

Options

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

Answer

To solve the question regarding the assertion and reason provided, we will analyze both statements step by step.

### Step-by-Step Solution:

1. **Understanding the Assertion**:
- The assertion states that the presence of restriction sites of many enzymes within the vector is not desirable.
- This is true because having multiple restriction sites can lead to complications during the cloning process.

2. **Understanding the Reason**:
- The reason given is that having multiple restriction sites will generate several fragments, complicating the process.
- This is also true, as when multiple restriction enzymes cut the DNA at their respective recognition sites, it results in the formation of several fragments.

3. **Connecting Assertion and Reason**:
- The reason explains why the assertion is true. If there are many restriction sites, it indeed generates multiple fragments, making it difficult to isolate the desired fragment for cloning.

4. **Evaluating the Options**:
- Since both the assertion and reason are true, and the reason correctly explains the assertion, we conclude that the correct option is:
- **Option A**: Both assertion and reason are true, and the reason is a correct explanation of the assertion.

### Conclusion:
The answer to the question is **Option A**.

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