Q. During DNA replication, Okazaki fragments are used to elongate
A) the lagging strand towards replication fork
B) the leading strand away from replication fork
C) the lagging strand away from the replication fork
D) the leading strand towards replication fork.
Explanation
Lagging strand is a replicated strand of DNA which is formed in short segments called Okazaki fragments. Its growth is discontinuous. The direction of growth of the lagging strand is 3’ → 5’ though in each Okazaki fragment it is 5’ → 3’.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.