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DNA Replication - Medical Science

Q1:

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

ANS:B - is a function of the 3'-5' exonuclease activity of the DNA polymerases

It means that this process occurs after the formation of the replication fork.