title: RNA from Salmonella typhimurium hybridizable with R-factor DNA.
mesh_terms: D002247:Carbon Isotopes; D004247:DNA; D004269:DNA, Bacterial; D004352:Drug Resistance, Microbial; D006824:Hybridization, Genetic; D012329:RNA, Bacterial; D012486:Salmonella typhimurium; D014316:Tritium
chemical_list: D002247:Carbon Isotopes; D004269:DNA, Bacterial; D012329:RNA, Bacterial; D014316:Tritium; D004247:DNA