DNA-Directed DNA PolymeraseProtein BiosynthesisProtein Synthesis InhibitorsStereoisomerismKineticsRNA, MessengerMolecular StructureCells, CulturedMolecular Sequence DataEscherichia coliCycloheximideDNADNA ReplicationCyclizationBase SequenceCell LineMutationTritiumLeucineTranscription, GeneticCarbon IsotopesRNALiverDactinomycinCell-Free SystemBacterial ProteinsChemistry Techniques, Synthetic