title: Mutation frequency decline and the Clarke-Hill effect for UV-induced streptomycin-resistant mutations in an incision-defective E. coli strain.
mesh_terms: D004260:DNA Repair; D004352:Drug Resistance, Microbial; D004926:Escherichia coli / Q000528:radiation effects*; D009154:Mutation; D013307:Streptomycin / Q000494:pharmacology*; D014466:Ultraviolet Rays
chemical_list: D013307:Streptomycin