what enzyme do some bacterial species produce that can repair the damaged dna in the presence of visible light?

it's     c       this is a cell (b) with a nucleus (c) containing dna (a). the dna is organized into chromosomes (d). a section of the chromosome that codes for a trait is called a gene (e).

the answer is:

carbon dioxide

wha is what i will use to get my free points

during the process of dna replication, brdu can replace thymidine and incorporate into the newly synthesized dna, cell proliferation thus can be reflected in the extent of brdu incorporation.