title: Female-specific phages and F-minus strains of Escherichia coli K12.
mesh_terms: D003090:Coliphages; D004926:Escherichia coli; D005796:Genes; D008040:Genetic Linkage; D005827:Genetics, Microbial; D006639:Histidine; D009154:Mutation; D012737:Sex Factors
chemical_list: D006639:Histidine