title: Mutational DNA base sequence changes in plasmid damaged at a specific region by ultraviolet light.
mesh_terms: D001483:Base Sequence / Q000528:radiation effects; D004269:DNA, Bacterial / Q000528:radiation effects*; D004926:Escherichia coli / Q000235:genetics*; D009154:Mutation; D010957:Plasmids / Q000528:radiation effects*; D014466:Ultraviolet Rays
chemical_list: D004269:DNA, Bacterial