[A]: Polymerase chain reaction (PCR) followed by DNA probe is used during DNA finger printing.
[R]: A DNA finger print is inherited and, therefore, resembles that of parent

Options

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

Answer

### Step-by-Step Solution:

1. **Understanding the Assertion (A)**:
- The assertion states that "Polymerase chain reaction (PCR) followed by DNA probe is used during DNA fingerprinting."
- PCR is a technique used to amplify small segments of DNA, making it easier to analyze. After amplification, DNA probes are used to identify specific sequences within the DNA, which is essential in DNA fingerprinting.

2. **Understanding the Reason (R)**:
- The reason states that "A DNA fingerprint is inherited and, therefore, resembles that of the parent."
- DNA is the genetic material that is passed from parents to offspring. This means that the DNA fingerprint of an individual will have similarities to that of their parents due to the inheritance of genetic material.

3. **Evaluating the Truth of Each Statement**:
- Both statements A and R are true. PCR is indeed used in DNA fingerprinting, and DNA fingerprints do resemble those of the parents due to inheritance.

4. **Assessing the Relationship Between A and R**:
- While both statements are true, the reason (R) does not explain the assertion (A). The use of PCR and DNA probes in fingerprinting is a technical process, while the inheritance of DNA fingerprints is a biological characteristic. The reason does not provide a direct explanation for the assertion.

5. **Conclusion**:
- Therefore, the final conclusion is that both A and R are true, but R is not the correct explanation of A.

### Final Answer:
Both A and R are true, but R is not the correct explanation of A.

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