DNA, SuperhelicalNucleic Acid ConformationDNA, CircularDNA-Directed DNA PolymerasePolymerase Chain ReactionRNA Polymerase IIDNA Topoisomerases, Type IEthidiumDNA, ViralOsmium TetroxidePlasmidsDNA-Directed RNA PolymerasesBase SequenceMolecular Sequence DataEscherichia coliSimian virus 40DNADNA Polymerase IElectrophoresis, Agar GelTranscription, GeneticTemplates, GeneticDNA Polymerase IIDNA Polymerase IIIColiphagesDNA, BacterialDNA ReplicationDeoxyribonucleasesRNA Polymerase IRNA Polymerase IIIEndonucleasesSingle-Strand Specific DNA and RNA EndonucleasesKineticsNucleic Acid DenaturationDNA, Single-StrandedDNA Polymerase betaHistonesDeoxyribonucleoproteinsCarbodiimidesOsmolar ConcentrationNucleosomesProtein BindingCentrifugation, Density GradientPolydeoxyribonucleotidesBromosuccinimideBinding SitesModels, MolecularPromoter Regions, GeneticChromatinNucleoproteinsAmino Acid SequenceTyrothricinMutationMolecular WeightNovobiocinViral ProteinsRNA ReplicaseRNA-Directed DNA PolymeraseDNA Topoisomerases, Type IIDNA-Binding ProteinsSodium ChlorideMicroscopy, Electron