![Proofreading activity to maintain the fidelity of DNA synthesis](https://www.gkseries.com/blog/wp-content/uploads/2022/02/Proofreading-activity-to-maintain-the-fidelity-of-DNA-synthesis.png)
Q. Proofreading activity to maintain the fidelity of DNA synthesis
A. occurs after the synthesis has been completed
B. is a function of the 3′-5′ exonuclease activity of the DNA polymerases
C. requires the presence of an enzyme separate from the DNA polymerases
D. occurs in prokaryotes but not eukaryotes
Answer: is a function of the 3′-5′ exonuclease activity of the DNA polymerases