Assertion. One gene-one enzyme hypothesis of Beadle and Tatum is true in all cases.
Reason. An enzyme always consists of more than one polypeptide chain
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 but R is false.
D. If both A and R are false.