title: Unstable mutation forms induced by UV irradiation.
mesh_terms: D003434:Crossing Over, Genetic / Q000528:radiation effects; D004926:Escherichia coli / Q000254:growth & development / Q000528:radiation effects*; D009154:Mutation / Q000528:radiation effects*; D011830:Radiation Effects; D014364:Tryptophan / Q000378:metabolism; D014466:Ultraviolet Rays
chemical_list: D014364:Tryptophan