Repetitive Sequences, Nucleic AcidArchaeaGenes, rRNARepetitive Sequences, Amino AcidMolecular Sequence DataBase SequenceAmino Acid SequenceProkaryotic CellsPhylogenyCloning, MolecularRNA, Ribosomal, 16SSequence Analysis, DNADNA, RibosomalDNA, BacterialSequence Homology, Nucleic AcidSequence Homology, Amino AcidNucleic Acid HybridizationDNAAmino AcidsNucleotidesEscherichia coliNucleic Acid ConformationGenes, BacterialSequence AlignmentRNA, RibosomalBase CompositionSpecies SpecificityPeptide Nucleic AcidsPolymerase Chain ReactionGenesRNA, BacterialRestriction MappingDNA Restriction EnzymesPlasmidsBacterial ProteinsBacteriaTranscription, GeneticDNA, ArchaealMutationGenes, ArchaealOpen Reading FramesArchaeal ProteinsCodonGenome, ArchaealEvolution, MolecularDNA PrimersRNABinding SitesBlotting, SouthernChromosome MappingRNA, MessengerGenetic VariationAmino Acid SubstitutionDNA Transposable ElementsRNA, ArchaealNucleic Acid RenaturationDNA, ComplementaryKineticsModels, MolecularRNA, Ribosomal, 23SMolecular WeightConserved SequenceDNA, ViralSeawaterGene LibraryProtein BiosynthesisGenes, ViralRecombinant ProteinsNucleic Acid DenaturationBiological EvolutionGeologic SedimentsOligonucleotide ProbesDNA, RecombinantMultigene FamilyRNA, ViralRNA, TransferGenome, BacterialDNA ProbesProtein BindingOperonInterspersed Repetitive SequencesProtein ConformationCell LineSubstrate SpecificityCluster AnalysisPolymorphism, Restriction Fragment LengthProtein Structure, TertiarySaccharomyces cerevisiaeCrenarchaeotaDNA, PlantDNA, FungalNucleic Acid ProbesElectrophoresis, Polyacrylamide GelOligonucleotidesSequence AnalysisPhenotyperRNA OperonIntronsPromoter Regions, GeneticEukaryotic Cells