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39 votes
39 votes
Which repair process in e. Coli uses visible light to repair thymine dimers?.

User Nanuet
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1 Answer

11 votes
11 votes

Answer:

photoreactivation repair

Step-by-step explanation:

Photoreactivation utilizes the enzyme photolyase to break the bonds formed during pyrimidine dimerization. A thymine dimer produced by UV irradiation is bound by photolyase. Visible light energy is absorbed by photolyase and is redirected to break the bonds forming the dimer.

In addition to bacteria, this DNA repair mechanism is also found in single-celled eukaryotes, plants, and some animals such as Drosophila.

User Orionis
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