what is an important difference in the enzymatic activity between dna polymerases i and iii?
What is an important difference in the enzymatic activity between DNA polymerases I and III? Only DNA polymerase I has 5′-to-3′ exonuclease activity. ... DNA polymerases cannot begin without a primer containing a free 3 ′-OH. On the lagging strand, primase builds an RNA primer in short bursts.