DNA, BacterialTritiumThymidineCentrifugation, Density GradientGenetics, MicrobialThymineNucleic Acid DenaturationRadiation EffectsCarbon IsotopesPhosphorus IsotopesEscherichia coliExtrachromosomal InheritanceColiphagesDeoxyribonucleasesCesiumChloramphenicolTransformation, GeneticDNA, ViralUracilDNADNA ReplicationDNA, CircularDNA NucleotidyltransferasesCytosineBacillus subtilisSucroseMutationLysogenyRNA, BacterialMitomycinsDNA VirusesUridineUltraviolet RaysBacteriophagesCulture MediaNalidixic AcidChromosomes, BacterialGuanineTemperatureGenesConjugation, GeneticCentrifugation, ZonalMicrococcusNitrosoguanidinesHot TemperatureAcridinesNucleic Acid RenaturationMolecular WeightHybridization, GeneticCulture TechniquesDrug Resistance, MicrobialStreptomycinBacterial ProteinsEthidiumNucleic Acid HybridizationRadiation GeneticsAdenineChromatographyCell-Free SystemMicroscopy, ElectronLeucineGeneticsR FactorsTransformation, BacterialAutoradiographyDensitometryCytosine NucleotidesCarbon RadioisotopesNucleotidesHaplorhiniPlasmidsMicropore FiltersChloridesRifampinFormamidesBacteriolysisTransduction, GeneticHydroxyapatitesGenetic CodeKineticsMethodsVirus CultivationThymine NucleotidesDeoxyribonucleotidesBromouracilRecombination, GeneticTemplates, GeneticExonucleasesNucleosidesSporesPolynucleotidesTime FactorsSpectrophotometryDNA RepairColicinsProteusRNAChromatography, PaperDNA, Single-StrandedProtein Biosynthesis