Assertion :- Mutation play key role in the process of evolution.
Reaosn : Mutation can change the genotypic consituent.

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

**Step-by-Step Solution:**

1. **Understanding the Assertion**: The assertion states that "Mutations play a key role in the process of evolution." To evaluate this, we need to consider the role of mutations in biological diversity and evolution. Mutations introduce genetic variations, which are essential for natural selection and evolution.

2. **Understanding the Reason**: The reason given is that "Mutation can change the genotypic constituent." This means that mutations alter the genetic makeup (genotype) of an organism, which can lead to new traits or characteristics.

3. **Evaluating the Truth of the Assertion**: Mutations are indeed critical for evolution. They provide the raw material for evolutionary change by creating genetic diversity. Therefore, the assertion is true.

4. **Evaluating the Truth of the Reason**: Since mutations change the genotypic constituents, they can lead to variations in phenotypes (observable traits). This change is a fundamental aspect of how evolution occurs. Thus, the reason is also true.

5. **Determining the Relationship**: The reason explains why the assertion is true. Mutations lead to changes in the genotype, which in turn can lead to evolutionary changes over time. Therefore, the reason is a correct explanation of the assertion.

6. **Conclusion**: Both the assertion and the reason are true, and the reason correctly explains the assertion.

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

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