Mechanisms of DNA damage, repair and mutagenesis - PMC
At least five major DNA repair pathways—base excision repair (BER), nucleotide excision repair (NER), mismatch repair (MMR), homologous recombination (HR) and non-homologous end joining …
DNA repair - Wikipedia
In order to repair damage to one of the two paired molecules of DNA, there exist a number of excision repair mechanisms that remove the damaged nucleotide and replace it with an undamaged …
DNA Damage and DNA Repair: Types and Mechanism - Microbe Notes
Sep 8, 2023 · To overcome the harmful effects of DNA damage, cells have various systems such as DNA repair mechanisms, damage tolerance pathways, cell cycle checkpoints, and cell death …
DNA damage repair - Nature
Mar 17, 2025 · Changes in nuclear and genome organization promote the repair of DNA double-strand breaks and genome stability. Processes that are involved include the modulation of chromatin state, …
DNA Repair - Damage & Types of Repair - GeeksforGeeks
Jul 23, 2025 · Cells use different repair mechanisms, including direct reversal and nucleotide excision repair. These processes involve recognizing, removing, and replacing damaged nucleotides to …
DNA repair | Enzymes, Pathways & Benefits | Britannica
DNA repair, any of several mechanisms by which a cell maintains the integrity of its genetic code. DNA repair ensures the survival of a species by enabling parental DNA to be inherited as faithfully as …
DNA Repair Pathway: New Advances and Key Mechanisms
Apr 29, 2025 · DNA repair pathways are specialized mechanisms that cells employ to rectify various types of DNA damage. Each pathway is tailored to address specific forms of damage, ensuring the …