Adler exposure to U V rudintion (found in sunlight), pcoplc with Cockayne syndrome can no longer perform a certain type od DNA repair Two gcncs defectivc in Cockayne syndrome, CSA and CSB, have been identified so far.
The CSA genc is found on chromośme 5.
Btrth genes codę for proteins that internet s with components of the transcriptional machincry and with DNA repair proteins.