Which of the Following Enzymes Performs Light Dependent Repair

Question

Which of the following enzymes performs light dependent repair?
A) DNA gyrase
B) DNA polymerase
C) DNA photolyase
D) RNA polymerase
E) DNA helicase

Accepted Answer

DNA photolyase is an enzyme that performs light dependent repair. It uses energy from visible light to break the covalent bonds between the thymine dimers that are caused by UV radiation, thereby restoring the DNA molecule to its original state. DNA gyrase, DNA polymerase, RNA polymerase, and DNA helicase are all enzymes involved in DNA replication, transcription, and repair, but they do not perform light dependent repair.