Assertion: Transgenic animals are those animals whose DNA is mainpulated to process & express an extra /foregin gene
Reason :About more than 95% of all existing transgenic animals, are mice

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 transgenic animals are those whose DNA has been manipulated to express an extra or foreign gene. This is true because transgenic animals are created through genetic engineering techniques that introduce new genes into their genome, allowing them to express traits that are not naturally theirs.

2. **Understanding the Reason**:
- The reason provided states that more than 95% of all existing transgenic animals are mice. This is also true, as mice are the most commonly used model organisms in genetic research and transgenic technology due to their genetic similarity to humans and their relatively short reproductive cycles.

3. **Analyzing the Relationship**:
- While both statements are true, the reason does not explain the assertion. The assertion defines what transgenic animals are, while the reason provides a statistic about the prevalence of mice among transgenic animals. The reason does not clarify why transgenic animals are defined as such.

4. **Conclusion**:
- Therefore, the correct interpretation is that both the assertion and the reason are true, but the reason does not serve as a correct explanation of the assertion.

### Final Answer:
Both assertion and reason are true, but reason is not a correct explanation of the assertion.

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