Question

What is the basis for the difference in how the leading and lagging strands of DNA
molecules are synthesized?
(A) the origins of replication occur only at the 5' end.
(B) DNA ligase works only in the 3'-- 5 direction.
(C) polymerase can only work on one strand at a time.​

Answer 1

Answer:

A) origin of replication occurs only at 5' end

Explanation:

Primase generates short strands of RNA that bind to the single-stranded DNA to initiate DNA synthesis by the DNA polymerase. This enzyme can work only in the 5' to 3' direction.