title: R plasmid gene dosage effects in Escherichia coli K-12: copy mutants of the R plasmic R1drd-19.
mesh_terms: D000667:Ampicillin / Q000494:pharmacology; D002701:Chloramphenicol / Q000494:pharmacology; D004261:DNA Replication; D004269:DNA, Bacterial / Q000235:genetics; D004926:Escherichia coli / Q000235:genetics*; D009154:Mutation; D010641:Phenotype; D011815:R Factors; D013307:Streptomycin / Q000494:pharmacology
chemical_list: D004269:DNA, Bacterial; D002701:Chloramphenicol; D000667:Ampicillin; D013307:Streptomycin