There is no single enzyme responsible for DNA duplication. But the most important ones are:
Helicase: it unwinds the DNA helix
RNA polymerase: adds the RNA primer
DNA polymerase: adds the complementary strand of DNA
Ligase: attaches the DNA fragments together
mRNA takes a massage from the DNA in the nucleus to the ribosomes in the cytoplasm to be translated.
there are many enzymes but the most important one is DNA polymerase.
The enzyme DNA polymerase is what facilitates the replication of DNA, however there are multiple enzymes that aid the process of DNA replication such as helicase, ligase, and exonuclease.
DNA Polymerase
Helicase
Topoisomerase is the enzyme that unwinds the DNA during replication. It binds to the DNA, and separates the double strands and form a replication fork. After which the primer bind to the start site, and DNA polymerase starts DNA synthesis.
A nice simple answer for you: Replication.
Helicase is what will "unzip" the DNA.
DNA replicates using the process called semiconservative replication. An original DNA molecule is complementary to the replicated molecule, which means that they are identical copies of each other.
mRNA copies the information.Process is called transcription.
ligase
The enzyme
In DNA replication, DNA polymerase III is the enzyme which joins the DNA nucleotides together via phospodiester bonds.DNA Ligase is the enzyme that seals gaps in DNA during DNA Replication.DNA Ligase is the enzyme that seals gaps in DNA during DNA Replication.
DNA Replication :)
DNA replication
Topoisomerase is the enzyme that unwinds the DNA during replication. It binds to the DNA, and separates the double strands and form a replication fork. After which the primer bind to the start site, and DNA polymerase starts DNA synthesis.
DNA polymerase
The enzyme that transcribes the DNA into RNA is called RNA polymerase.
DNA ligase
Primase
Such an enzyme is called a restriction endonuclease
Question is unclear . If you mean pieces of DNA , thae enzyme is DNA ligase which joins pieces of DNA called Okazaki fragments together .