The reconstruction of a continuous two-stranded DNA molecule without mismatch from a molecule which contained damaged regions. The major repair mechanisms are excision repair, in which defective regions in one strand are excised and resynthesized using the complementary base pairing information in the intact strand; photoreactivation repair, in which the lethal and mutagenic effects of ultraviolet light are eliminated; and post-replication repair, in which the primary lesions are not repaired, but the gaps in one daughter duplex are filled in by incorporation of portions of the other (undamaged) daughter duplex. Excision repair and post-replication repair are sometimes referred to as "dark repair" because they do not require light.

Descriptor ID	D004260
MeSH Number(s)	G02.111.222 G05.219
Concept/Terms	DNA Repair DNA Repair Excision Repair Excision Repair Excision Repairs Repair, Excision Nucleotide Excision Repair Nucleotide Excision Repair Excision Repair, Nucleotide Nucleotide Excision Repairs Base Excision Repair Base Excision Repair Base Excision Repairs Excision Repair, Base Repair, Base Excision Repairs, Base Excision

Below are MeSH descriptors whose meaning is more general than "DNA Repair".

Below are MeSH descriptors whose meaning is related to "DNA Repair".

Below are MeSH descriptors whose meaning is more specific than "DNA Repair".