What enzymes are involved in DNA replication?
Several enzymes are involved in the process of DNA replication. These enzymes perform a variety of functions, including unwinding the double helix of DNA, synthesizing new strands of DNA, and proofreading the newly synthesized strands for errors.
Some of the key enzymes involved in DNA replication include:
- Helicase: unwinds the double helix of DNA by breaking the hydrogen bonds that hold the two strands together.
- Primase: synthesizes short RNA primers, which are required for DNA synthesis.
- Polymerase: synthesizes new strands of DNA using the original strands as templates.
- Ligase: seals gaps in the newly synthesized strands of DNA.
- Topoisomerase: relieves the tension that builds up as the DNA strands unwind during replication.
- Exonuclease: proofreads the newly synthesized strands of DNA for errors and removes any incorrect nucleotides.
Overall, these enzymes work together to ensure that DNA replication is accurate and efficient.