DNA REPAIR AND MUTATION

importance DNA repair

  • maintain integrity of genetic code

  • enable parental DNA to be inherited as faithfully as possible to offspring

  • prevent mutation or cancer

  • preserve health

DNA repaired by proofreading

  • theremoval of incorrect nucleotides immediately after they are added to the growing DNA replication

  • moving 3-5

  • by DNA polymerase(eukaryote by delta and apsilon)

proofreadig im