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Confidence votes 106. The role that enzymes plays in DNA replication is that the enzyme helicase breaks hydrogen bonds between the complementary bases, and the chains separate.
DNA polymerase is the enzyme responsible for adding the daughter nucleotides to the parent DNA strand. In order to help it get started in its process, an RNA primer is built upon the parent strand at the base of the replication fork. The enzyme responsible for building that RNA primer is RNA primase.ell, fortunately, we do, and it's yet another enzyme. It's called RNA primase. The job of RNA primase is to make, or synthesize, a primer for replication to start. First it waits for DNA helicase to open a replication fork.