<Tr> <Td> X </Td> <Td> Replicative and Repair Polymerases </Td> <Td> Eukaryotic </Td> <Td> Pol β, Pol σ, Pol λ, Pol μ, and Terminal deoxynucleotidyl transferase </Td> </Tr> <Tr> <Td> Y </Td> <Td> Replicative and Repair Polymerases </Td> <Td> Eukaryotic and Prokaryotic </Td> <Td> Pol ι (iota), Pol κ (kappa), Pol η (eta), Pol IV, and Pol V </Td> </Tr> <Tr> <Td> RT </Td> <Td> Replicative and Repair Polymerases </Td> <Td> Viruses, Retroviruses, and Eukaryotic </Td> <Td> Telomerase, Hepatitis B virus </Td> </Tr> <P> Prokaryotes only have one RNA polymerase and it exists in two forms: core polymerase and holoenzyme . Core polymerase synthesizes DNA from the DNA template but it cannot initiate the synthesis alone or accurately . Holoenzyme accurately initiates synthesis . </P>

How does dna polymerase know which nucleotides to add