RNA, RibosomalPhylogenyRNA, Ribosomal, 16SDNA, RibosomalGenes, rRNAMolecular Sequence DataBase SequenceSequence Analysis, DNAYeastsRNA, BacterialRNA, Ribosomal, 18SRNA, Ribosomal, 28SRNARNA, Ribosomal, 5SDNA, BacterialNucleic Acid HybridizationBase CompositionDNA, Ribosomal SpacerNucleic Acid ConformationGenesTranscription, GeneticRNA Polymerase ISpecies SpecificityRNA, FungalBacterial Typing TechniquesRNA, Ribosomal, 23SRNA, TransferPolymerase Chain ReactionDNA Restriction EnzymesCell NucleolusRNA, Ribosomal, 5.8SSaccharomyces cerevisiaeRNA, ViralDNA, FungalRNA, Small InterferingSequence Homology, Nucleic AcidRNA, ProtozoanTetrahymenaTranscription Factor TFIIIARNA SplicingCloning, MolecularRibosome Subunits, SmallPhysarumGenes, FungalSoil MicrobiologyRNA, Small NuclearEscherichia coliRNA EditingBacteriaDNA-Directed RNA PolymerasesRibosomesDNA, MitochondrialAmino Acid SequenceMutationSaccharomyces cerevisiae ProteinsDNAPlasmidsTrichomonadidaDNA PrimersGenome, MitochondrialSequence Analysis, RNADNA, ProtozoanDNA, RecombinantNucleolus Organizer RegionSeawaterPol1 Transcription Initiation Complex ProteinsFatty AcidsRNA Processing, Post-TranscriptionalRNA, MessengerPolymorphism, Restriction Fragment LengthMetagenomeSequence AlignmentGenes, BacterialCluster AnalysisEvolution, MolecularBradyrhizobiaceaeRepetitive Sequences, Nucleic AcidProtozoan Infections, AnimalSingle-Strand Specific DNA and RNA EndonucleasesGenetic VariationRestriction MappingFungal ProteinsPromoter Regions, GeneticCiliophoraParomomycinRNA PrecursorsBiological EvolutionGeologic SedimentsTranscription FactorsRNA Polymerase IIIArchaeaRNA, UntranslatedBiodiversityRNA Polymerase IICell NucleusActinomycetalesRNA, CatalyticDNA, IntergenicRNA InterferenceRNA Viruses