The Enzyme That Joins Okazaki Fragments Is

Question

The enzyme that joins Okazaki fragments is
A) primase.
B) DNA polymerase.
C) helicase.
D) ATP synthase.
E) ligase.

Accepted Answer

The enzyme that joins Okazaki fragments is called ligase. Other enzymes such as primase, DNA polymerase, and helicase are involved in different steps of DNA replication, but ligase is specifically responsible for sealing the gaps between Okazaki fragments during lagging strand synthesis. ATP synthase is not involved in DNA replication, but rather in the production of ATP from ADP and inorganic phosphate.