Assertion :- DNA polymorphism arises due to mutations.
Reason : An inheritable mutation which is observed in a population at high frequency, is refered to as DNA polymorphism.

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 "DNA polymorphism arises due to mutations."
- This means that variations in DNA sequences (polymorphisms) are a result of changes (mutations) that occur in the genetic material.

2. **Understanding the Reason:**
- The reason states that "An inheritable mutation which is observed in a population at high frequency is referred to as DNA polymorphism."
- This implies that for a mutation to be classified as a DNA polymorphism, it must be passed down through generations and be prevalent in a population.

3. **Analyzing the Relationship:**
- Both the assertion and reason are correct statements.
- The assertion correctly identifies that mutations lead to DNA polymorphism.
- The reason accurately describes what constitutes DNA polymorphism.

4. **Determining the Connection:**
- While both statements are true, the reason does not directly explain the assertion.
- The assertion focuses on the cause (mutations) while the reason describes a characteristic of DNA polymorphism (inheritable and frequent mutations).

5. **Conclusion:**
- Since both the assertion and reason are correct but the reason does not serve as a correct explanation for the assertion, the correct answer is that both are true, but the reason is not a correct explanation of the assertion.

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

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