title: Use of sex specific phages for demonstration of cell surface changes mediated by genes for ampicillin resistance in escherichia coli.
mesh_terms: D000667:Ampicillin / Q000494:pharmacology*; D002473:Cell Wall; D003090:Coliphages; D004926:Escherichia coli; D005260:Female; D005796:Genes; D008297:Male; D010403:Penicillin Resistance
chemical_list: D000667:Ampicillin