Repair of genetic material in living cells.

DNA/metabolism,radiation effects DNA Nucleotidyltransferases DNA Repair DNA Replication DNA, Bacterial/metabolism,radiation effects Darkness Deoxyribonucleases Escherichia coli/enzymology,radiation effects Ligases Light Models, Biological Polynucleotides Radiation Effects Recombination, Genetic Ultraviolet Rays

DNA, Bacterial Polynucleotides DNA DNA Nucleotidyltransferases Deoxyribonucleases Ligases