释义 |
SOS response
SOS response[¦es¦ō′es ri‚späns] (genetics) A bacterial deoxyribonucleic acid (DNA) repair system in which cell division and DNA replication are blocked, and DNA repair, recombination, and mutation genes are induced. SOS response The coordinate induction of genes in response to certain types of DNA damage; many of induced gene products facilitate repair of the damaged DNA, but the repair processes result in numerous mistakes in the repaired DNA, a process called error-prone repairSOS response DNA REPAIR processes in BACTERIA in response to severe DNA damage, for example exposure to ULTRAVIOLET LIGHT or other stimuli. |