The reca gene product is a part of SOS DNA repair that is activated when damaged DNA has escaped repair and distortion disrupts the process of replication. Recombinational repair is activated when damaged DNA has escaped repair and the distortion disrupts the process of replication.
There are 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 (NHEJ)—are active throughout different stages of the cell cycle, allowing the cells to repair the DNA damage.
The various types of excision repair are the most important DNA repair mechanisms in both prokaryotic and eukaryotic cells
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