what enzyme builds new dna
The DNA polymerases are enzymes that create DNA molecules by assembling nucleotides, the building blocks of DNA.These enzymes are essential to DNA replication and usually work in pairs to create two identical DNA strands from a single original DNA molecule.During this process, DNA polymerase âreadsâ the existing DNA strands to create two new strands that match the existing ones.n 1956, Arthur Kornberg and colleagues discovered the enzyme DNA polymerase I, also known as Pol I, in Escherichia coli. They described the DNA replication process by which DNA polymerase copies the base sequence of a template DNA strand.