title: Resistance of Escherichia coli to penicillins. IV. Genetic study of mutants resistant to D,L-ampicillin concentrations o 100 mu-g-ml.
mesh_terms: D000667:Ampicillin / Q000494:pharmacology; D005075:Biological Evolution; D002869:Chromosome Aberrations; D002874:Chromosome Mapping; D002876:Chromosomes, Bacterial; D003090:Coliphages; D004926:Escherichia coli; D005827:Genetics, Microbial; D007700:Kinetics; D010403:Penicillin Resistance; D014161:Transduction, Genetic
chemical_list: D000667:Ampicillin