Cell NucleolusNucleolus Organizer RegionCell NucleusRNA, RibosomalNuclear ProteinsRNA Polymerase ICoiled BodiesDNA, RibosomalRibonucleoproteins, Small NucleolarHeLa CellsSilver StainingMicroscopy, ElectronCytoplasmPol1 Transcription Initiation Complex ProteinsRNARNA-Binding ProteinsIntranuclear SpaceDactinomycinTelophaseMitosisRNA, Small NucleolarChromosomal Proteins, Non-HistoneRibosomesInterphaseMolecular Sequence DataRNA, NuclearNuclear Localization SignalsChromosomesActive Transport, Cell NucleusFluorescent Antibody TechniqueChromatinTranscription, GeneticRecombinant Fusion ProteinsRNA PrecursorsRNA Processing, Post-TranscriptionalMicroscopy, FluorescenceGreen Fluorescent ProteinsRibonucleoproteinsSex ChromatinRibosomal ProteinsRibonucleoproteins, Small NuclearProphaseAmino Acid SequenceProtein TransportNaegleriaUridineOocytesNucleoproteinsChromosome PositioningHistocytochemistryCell LineAutoradiographySpisulaLuminescent ProteinsHeterochromatinSaccharomyces cerevisiae ProteinsRNA, Ribosomal, 18SPhosphoproteinsRNA, Small NuclearSaccharomyces cerevisiaeMicroscopy, ConfocalStaining and LabelingNissl BodiesCell CycleDichlororibofuranosylbenzimidazoleMetaphaseBase SequenceRNA, Ribosomal, 5.8SKaryometryMeiosisTumor Suppressor Protein p14ARFOrganelle ShapeCarubicinKaryopherinsProtein BindingCell Nucleus StructuresFluorescence Recovery After Photobleaching