Which dna polymerase has 3 to 5 exonuclease activity?
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This process involves the exonuclease's catching up to the pol II and terminating the transcription. Pol I then synthesizes DNA nucleotides in place of the RNA primer it had just removed. DNA polymerase I also has 3' to 5' and 5' to 3' exonuclease activity, which is used in editing and proofreading DNA for errors.
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