Spindle ApparatusMeiotic Prophase IMuscle SpindlesMeiosisMitosisMicrotubulesMetaphaseAnaphaseSynaptonemal ComplexChromosome PairingKinetochoresChromosome SegregationCentrosomeChromosomesCell Cycle ProteinsTelophaseKinesinMicrotubule-Associated ProteinsTubulinOocytesCentromereAurora KinasesNocodazolePrometaphasePachytene StageMad2 ProteinsDyneinsNuclear ProteinsChromosomal Proteins, Non-HistoneNuclear Matrix-Associated ProteinsChromatidsProtein-Serine-Threonine KinasesCell NucleusCell CycleInterphaseNuclear EnvelopeCytokinesisDipodomysHeLa CellsM Phase Cell Cycle CheckpointsChromosomes, FungalCyclin BMicroscopy, FluorescenceMicrotubule-Organizing CenterSaccharomyces cerevisiae ProteinsAurora Kinase BMutationSchizosaccharomycesCentriolesCDC2 Protein KinaseCrossing Over, GeneticOogenesisAnaphase-Promoting Complex-CyclosomeUbiquitin-Protein Ligase ComplexesCaenorhabditis elegansSchizosaccharomyces pombe ProteinsCaenorhabditis elegans ProteinsSaccharomyces cerevisiaeXenopus ProteinsCdc20 ProteinsOrganoidsProphaseCell Nucleus DivisionMotor Neurons, GammaFungal ProteinsOvumFluorescent Antibody TechniqueDrosophila ProteinsCell PolarityTestisMicrotubule ProteinsMolecular Sequence DataCell DivisionGenes, cdcCyclin B1SaccharomycetalesTubulin ModulatorsDemecolcineMicroscopy, ElectronAmino Acid SequenceRNA InterferenceGreen Fluorescent ProteinsModels, Biologicalran GTP-Binding ProteinEmbryo, NonmammalianSex ChromatinBirefringenceChromosomes, HumanChromatinMicroscopy, VideoNondisjunction, GeneticG2 PhaseThionesPhosphorylationCytoplasmGerm CellsSpermatocytesRecombinant Fusion ProteinsProtein KinasesDrosophila