Which DNA polymerase in bacteria is mostly involved in DNA repair to correct damaged DNA sections and removes RNA primers at the 5' ends of Okazaki fragments,replacing them with DNA?
A)DNA polymerase I
B)DNA polymerase II
C)DNA polymerase III
D)DNA polymerase IV
E)both DNA polymerase I and DNA polymerase III

Question

Quizplus · Accepted Answer

DNA polymerase I is mostly involved in DNA repair to correct damaged DNA sections and removes RNA primers at the 5' ends of Okazaki fragments, replacing them with DNA. DNA polymerase II is involved in DNA repair in some bacteria, but not to the extent of DNA polymerase I. DNA polymerase III is the primary replicative DNA polymerase in bacteria. DNA polymerase IV is involved in translesion synthesis, which allows replication to continue past damaged DNA sections, but it does not remove RNA primers or participate in repair in the same way as DNA polymerase I.

Which DNA Polymerase in Bacteria Is Mostly Involved in DNA