There isn't one specific name for "DNA polymer." The term "polymer" typically refers to a large molecule made of repeating subunits. DNA itself is a polymer, made up of repeating nucleotide subunits.

However, you might be thinking of the enzymes involved in DNA replication:

* DNA polymerase is the primary enzyme responsible for synthesizing new DNA strands using a pre-existing template. There are different types of DNA polymerases with specific roles in DNA replication, repair, and other processes.

* RNA polymerase is the enzyme responsible for synthesizing RNA molecules using a DNA template.

So, depending on what you're looking for, the answer could be either DNA (the polymer itself) or DNA polymerase (the enzyme that creates it).