The question consist of two statements each Assertion (A) and Reason (R) So answer these question choose any one of the following four respones
(A) If both (A) and (R) one 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 but (R) is false
(D) If both (A) and (R) as false
A :- Operon concept was given by Hershey and chase
R : - Separation of DNA fragments are done by centrifugation technique