title: Ultraviolet and gamma-ray mutagenesis in E. col: is there a common mechanism?
mesh_terms: D004261:DNA Replication; D004269:DNA, Bacterial / Q000528:radiation effects; D004926:Escherichia coli / Q000528:radiation effects*; D009154:Mutation; D011743:Pyrimidines / Q000528:radiation effects; D011830:Radiation Effects; D013941:Thymine; D014466:Ultraviolet Rays
chemical_list: D004269:DNA, Bacterial; D011743:Pyrimidines; D013941:Thymine