Assertion : Genetic engineering is also called recombinant DNA technology.
Reason: It brings about improvement of genetic make up of an organism.

Options

A. If both Assertion and Reason are true and Reason is a correct explanation of the Assertion.
B. If both Assertion and Reason are true but Reason is not a correct explanation of the Assertion.
C. If Assertion is true but Reason is false.
D. If both Assertion and Reason are false.

Answer

### Step-by-Step Solution:

1. **Understanding the Assertion**: The assertion states that "Genetic engineering is also called recombinant DNA technology." This is correct because genetic engineering involves manipulating an organism's DNA, which often includes creating recombinant DNA (rDNA).

2. **Understanding the Reason**: The reason given is that "It brings about improvement of genetic makeup of an organism." This statement is also true. Genetic engineering can enhance or modify the traits of an organism by altering its genetic makeup.

3. **Evaluating the Relationship**: While both the assertion and reason are true, the reason does not explain why genetic engineering is referred to as recombinant DNA technology. The term "recombinant DNA technology" specifically refers to the process of combining DNA from different sources to create new genetic combinations, which is a technique used in genetic engineering.

4. **Conclusion**: Since both statements are true but the reason does not correctly explain the assertion, the correct choice is that both the assertion and the reason are true, but the reason is not the correct explanation for the assertion.

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

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