Genomic InstabilityCell CycleCell Cycle ProteinsGenes, cdcDNA DamageCheckpoint Kinase 2G2 PhaseMitosisCell Cycle CheckpointsProtein-Serine-Threonine KinasesChromosomal InstabilityDNA RepairAtaxia Telangiectasia Mutated ProteinsS PhaseCell Line, TumorProtein KinasesTumor Suppressor Protein p53DNA-Binding ProteinsSpindle ApparatusMutationHydroxyureaDNA ReplicationNuclear ProteinsG2 Phase Cell Cycle CheckpointsTumor Suppressor ProteinsG1 PhaseM Phase Cell Cycle CheckpointsGamma RaysTumor Cells, CulturedSaccharomyces cerevisiae ProteinsMad2 ProteinsMolecular Sequence DataRadiation, IonizingSchizosaccharomycesSaccharomyces cerevisiaeCell DivisionFungal ProteinsAtaxia TelangiectasiaSchizosaccharomyces pombe ProteinsApoptosisPhosphorylationBase SequenceUltraviolet Rayscdc25 PhosphatasesCell LineRadiation ToleranceCyclin-Dependent Kinase Inhibitor p21CyclinsAneuploidyDNA Breaks, Double-StrandedNeoplasmsSignal TransductionCDC2 Protein KinaseCyclin BGenes, FungalFibroblastsIntracellular Signaling Peptides and ProteinsNeoplasm ProteinsCell ProliferationChromosome AberrationsGene DeletionPhenotypeHeLa CellsDNAModels, BiologicalJoint InstabilityFlow CytometryGene Expression Regulation, NeoplasticGenes, p53Cell SurvivalDNA, FungalCell Transformation, NeoplasticG1 Phase Cell Cycle CheckpointsRetinoblastoma ProteinCentrosomeDNA, NeoplasmBRCA1 ProteinCells, CulturedHistonesChromosome BreakageCyclin B1Amino Acid SequenceTelomerePolyploidyCell NucleusRepressor ProteinsS Phase Cell Cycle CheckpointsAntineoplastic AgentsNocodazoleRNA, Small InterferingTime FactorsMicrosatellite InstabilityDNA Repair EnzymesRNA, MessengerTransfectionAllelesTumor Markers, BiologicalDNA PrimersBlotting, WesternChromosomes, Fungal