Assertion : DNA fingerprinting involves identifying differences in specific regions in DNA sequence.
Reason : DNA lingerprinting is the basis of paternity testing.

Options

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

Answer

B

Explanation

DNA fingerprinting involves identifying differences in some specific regions in DNA sequence called as repetitive DNA, because in these sequences, a simall stretch of DNA is repeated many times. These sequences normally do not code for any proteins, but they form a large portion of hunan genome. These sequence show high degree of polymorphism and form the basis of DNA fingerprinting. As the polymorphisms are inheritable, from parents to children, DNA fingerprinting is the basis of paternity testing in case of disputes.