pol 1 - exonuclease activity
pol 2 - dna repair
pol 3 - primary replication enzyme
DNA polymerase I, II, and III are enzymes involved in DNA replication in prokaryotes. DNA polymerase I is responsible for removing RNA primers during DNA replication and filling the gaps with DNA nucleotides. DNA polymerase II is involved in DNA repair pathways, particularly in response to DNA damage. DNA polymerase III is the main enzyme responsible for synthesizing a new DNA strand during replication. It has a high processivity and is the primary enzyme involved in synthesizing the leading and lagging strands of DNA.
More than two enzymes are involved. However, the main ones are DNA Polymerase I and DNA Polymerase III. DNA Polymerase III adds new nucleotides and DNA Polymerase I removes primers.
DNA Polymerase is the enzyme which adds new nucleotides during replication.
the DNA polymerase III
DNA polymerase III requires a primer, which is a short piece of RNA or DNA, in order to function correctly.
The enzyme that transcribes the DNA into RNA is called RNA polymerase.
DNA polymerase is the main enzyme responsible for elongating DNA strands during DNA replication. It catalyzes the addition of nucleotides to the growing strand in a 5' to 3' direction.
DNA polymerase III adds nucleotides during DNA replication by attaching them to the growing DNA strand in a specific order that matches the complementary bases on the template strand. This enzyme catalyzes the formation of phosphodiester bonds between the nucleotides, creating a new strand of DNA that is identical to the original template strand.
DNA polymerase is the enzyme responsible for attaching nucleotides together by forming phosphodiester bonds during DNA replication.
In humans, many enzymes are involved in DNA replication. Among them are: DNA polymerase I DNA polymerase III Ligase Primase Helicase DNA polymerase I and III perform the bulk of the actual reproduction--their job is to add nucleotides to the growing strands. The others perform specialized functions and are essential to the process.
The four enzymes involved in DNA replication and repair are DNA polymerase, DNA helicase, DNA ligase, and DNA primase. DNA polymerase synthesizes new DNA strands, DNA helicase unwinds the double helix, DNA ligase joins the Okazaki fragments on the lagging strand, and DNA primase synthesizes RNA primers for DNA polymerase to begin replication.
DNA Polymerase III adds nucleotides during DNA replication. DNA Polymerase I also adds nucleotides (to a lesser extent). DNA Pol I is responsible for replacing the primers with dNTPs, these sections are then joined to the rest by DNA Ligase.