| 释义 |
excision repair
ex·ci·sion re·pairthe use of a complementary DNA strand as a template to replace a damaged segment of DNA.excision repair Correction of DNA damage by the removal of the damaged length of single strand by one of a number of enzymes capable of recognizing damaged nucleotides, and resynthesizing the correct nucleotide sequence complementary to the normal strand. The repair is catalyzed by DNA polymerase I and DNA ligase.excision repair the removal of damaged polynucleotide segments from DNA (e.g. THYMINE DIMERS produced by ultraviolet light) and replacement with a correct segment using DNA POLYMERASE and DNA LIGASE. |