Question

The prokaryotic DNA polymerases have multiple enzymatic activities. What are these activities, and what role do they play in DNA replication?

Answer 1

Ans- Three types of DNA polymerase enzyme involved in prokaryotic replication are:

- DNA polymerase I : DNA polymerase I performs exonuclease activity that removes RNA primer and replaced it with newly synthesized DNA.

- DNA polymerase II : DNA polymerase II is the DNA repair enzyme. Helps in repair during replication if any error occurs.

- DNA polymerase III : DNA polymerase III is the act as a main enzyme during prokaryotic replication because that adds nucleotides in the 5'-3' direction.