title: [Molecular genetics of R factor--with special reference to replication].
mesh_terms: D001435:Bacteriophages; D004261:DNA Replication; D004269:DNA, Bacterial / Q000096:biosynthesis; D004352:Drug Resistance, Microbial; D004926:Escherichia coli; D005796:Genes; D005827:Genetics, Microbial; D012475:Salmonella
chemical_list: D004269:DNA, Bacterial