Base SequenceEvolution, MolecularBase PairingNucleic Acid ConformationMolecular Sequence DataDNAPhylogenyBase CompositionNucleic Acid DenaturationNucleic Acid RenaturationOligonucleotidesDirected Molecular EvolutionNucleic Acid HybridizationAmino Acid SequenceOligodeoxyribonucleotidesSpecies SpecificityPolydeoxyribonucleotidesSequence Homology, Nucleic AcidEscherichia coliAminacrineDNA, BacterialMutationDNA, ViralCloning, MolecularRNA, Ribosomal, 18SModels, MolecularRNA, RibosomalSequence Analysis, DNAGenesSelection, GeneticSaccharomycesSequence AlignmentSkull BaseGuaninePoly dA-dTPlasmidsRepetitive Sequences, Nucleic AcidDNA, CircularRNASchiff BasesRNA, ViralIntercalating AgentsModels, GeneticSaccharomycetalesHybridization, GeneticDNA Restriction EnzymesCultural EvolutionTranscription, GeneticAdenineGenetic VariationGenes, BacterialThermodynamicsRNA, MessengerKineticsBinding SitesTemperatureDNA, Single-StrandedDeoxyribonucleotidesNucleotidesTritiumPoly ARNA, BacterialAdaptation, BiologicalClonal EvolutionOligoribonucleotidesColiphagesChemistryPolymerase Chain ReactionChemical PhenomenaComputer SimulationGenes, ViralRestriction MappingRNA, FungalHot TemperatureDNA PrimersSubstrate SpecificityMultigene FamilyTransformation, GeneticMagnetic Resonance SpectroscopyPrimatesMolecular WeightBacterial ProteinsTemplates, GeneticCell LineStructure-Activity RelationshipFossilsDNA, RecombinantRibonucleasesEndonucleasesPromoter Regions, GeneticCentrifugation, Density GradientGenomeDNA ProbesDNA ReplicationModels, ChemicalSequence Homology, Amino AcidConserved SequenceDNA, RibosomalMammalsSkull Base Neoplasms