"Proofreading" is the role of: (A) DNA primase, (B) DNA Polymerase, (C) Exonuclease I, (D) Restriction endonuclease
Answer is B. "Polymerase II (pol II) is mostly involved in proofreading and DNA repair. Polymerase I (pol I) completes chain synthesis between Okazaki fragments on the lagging strand.