DNA Polymerase I

Definition

A type of enzyme called a polymerase that replaces RNA primers with DNA nucleotides during DNA replication.

Related terms

Exonuclease: An enzyme that removes mismatched or damaged sections of DNA for repair.

DNA Polymerase III:

The main enzyme involved in DNA replication, which adds new nucleotides to the growing strand of DNA.

Replication Fork:

The point at which the two strands of DNA are separated to allow replication to occur.