Assertion: Gene therapy is a collection of methods that allows correction of a gene defect diagnosed in a child or embryo
Reason :It involves delivery of normal gene into the individual or embryo to take over the function of the non functional gene

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

### Step-by-Step Solution:

1. **Understanding the Assertion**:
- The assertion states that "Gene therapy is a collection of methods that allows correction of a gene defect diagnosed in a child or embryo."
- This means that gene therapy is designed to address genetic disorders by correcting the underlying genetic defect.

2. **Understanding the Reason**:
- The reason provided is "It involves delivery of a normal gene into the individual or embryo to take over the function of the non-functional gene."
- This indicates that the method of gene therapy typically involves introducing a healthy copy of a gene to compensate for the defective one.

3. **Evaluating the Truth of the Assertion**:
- The assertion is true because gene therapy indeed aims to correct genetic defects that can be diagnosed in individuals, including children and embryos.

4. **Evaluating the Truth of the Reason**:
- The reason is also true because the primary mechanism of gene therapy involves replacing or supplementing the defective gene with a functional one.

5. **Relationship Between Assertion and Reason**:
- The reason explains how gene therapy works, which supports the assertion. Therefore, the reason is a correct explanation of the assertion.

6. **Conclusion**:
- Since both the assertion and the reason are true, and the reason correctly explains the assertion, the answer is that both statements are true and the reason is a correct explanation of the assertion.

### Final Answer:
Both the assertion and reason are true, and the reason is a correct explanation of the assertion.

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