<prompt> Which enzyme polymerises okazaki fragments ?DNA polymerase IDNA polymerase IIDNA polymerase IIIRNA polymerase  <response>: Ans. is c i.e., DNA polymerase III Two DNA polymerases act on Okazaki fragments :? DNA polymerase :- Causes polymerization of okazaki fragments, i.e. synthesis of DNA on lagging strand. It also causes synthesis of leading strand. DNA polymerase I :- It fills the gap between okazaki fragments when their polymerization is completed, i.e. when the synthesis on lagging strand is completed, DNA polymerase I fills the gap between fully polymerized okazaki fragments. Thus, DNA polymerase III is involved during elongation polymerization of okazaki fragments and DNA polymerase I is involved during termination filling the gaps between okazaki fragments. 