title: Genetic structure of an R factor conferring ampicillin resistance.
mesh_terms: D000667:Ampicillin / Q000494:pharmacology*; D002701:Chloramphenicol / Q000494:pharmacology; D003434:Crossing Over, Genetic; D004096:Dihydrostreptomycin Sulfate / Q000494:pharmacology; D004926:Escherichia coli / Q000187:drug effects; D005111:Extrachromosomal Inheritance; D005796:Genes; D005827:Genetics, Microbial; D008954:Models, Biological; D010403:Penicillin Resistance; D011995:Recombination, Genetic; D012475:Salmonella / Q000187:drug effects; D012760:Shigella / Q000187:drug effects; D013424:Sulfanilamides / Q000494:pharmacology; D013752:Tetracycline / Q000494:pharmacology; D014161:Transduction, Genetic
chemical_list: D013424:Sulfanilamides; D002701:Chloramphenicol; D000667:Ampicillin; D013752:Tetracycline; D004096:Dihydrostreptomycin Sulfate