Assertion:In a DNA molecules the total quantity of purines equals the total quantity of pyrimidines
Reason : Adenine pairs with thymine and cytosine pairs with guanine

Options

A. Both Assertion and Reason are true and Reason is the correct explanation of Assertion
B. Both Assertion and Reason are true but Reason is not a correct explanation of Assertion
C. Assertion is true but Reason is false
D. Assertion is false but Reason is true

Answer

C

Explanation

This is expressed by chargaff's base pairing rule