Assertion :DNA finger printing is a method in which polymerase chain reaction is used. Reason: A DNA finger print is inherited and therefore, resembles that of parents.

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion.

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Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion.

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Assertion is correct but Reason is incorrect.

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Assertion is incorrect but Reason is correct.

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Solution

The correct option is B Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion.
DNA finger printing is also called as DNA profiling. It is a laboratory technique used to identify the individuals with the characteristics of their DNA. It is used to solve some crime mysteries like murder, rape etc. Usually, the samples (e.g., blood, semen,saliva) that are available for the testing are small. Hence, polymerase chain reaction is used to amplify the amount of DNA present in the sample. Hence, the assertion is correct.
DNA fingerprints have an inheritable quality. The pattern types of the DNA fingerprints are often genetically inherited from the parents to the offsprings. Hence, the DNA fingerprint resembles that of parents. The reason is correct but it is not a correct explanation of the assertion. Thus, the correct answer is the option B.

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