title: Chemical mutagenesis by benzo[a]pyrene in Escherichia coli in the absence of any activating agents.
mesh_terms: D001580:Benzopyrenes / Q000494:pharmacology*; D004305:Dose-Response Relationship, Drug; D004926:Escherichia coli / Q000235:genetics; D009153:Mutagens; D010641:Phenotype; D013997:Time Factors
chemical_list: D001580:Benzopyrenes; D009153:Mutagens