Assertion : Origin of replication (ori) is a definite region in E. coli DNA where the replication originates.
Reason : The vectose in r-DNA procedures provide the origin of replication.
A. If both assertion and reason are true and the reason is the correct explanation of the assertion.
B. If both assertion and reason are true but reason is not the correct explanation of the assertion.
C. If assertion is true but reason is false.
D. If both assertion and reason are false.
