Cell CycleCell Cycle ProteinsMenstrual CycleMitosisCell Cycle CheckpointsCell DivisionTime FactorsEmbryo, NonmammalianG1 PhaseS PhaseMolecular Sequence DataCell DifferentiationCell LineEmbryo, MammalianApoptosisGene Expression Regulation, DevelopmentalEstrous CycleCyclinsLuteal PhaseCells, CulturedModels, BiologicalCell ProliferationFollicular PhaseRNA, MessengerCDC2 Protein KinaseCell NucleusNuclear ProteinsSignal TransductionPhosphorylationMutationG2 PhaseGene Expression RegulationDNACell Line, TumorBase SequenceFlow CytometryAmino Acid SequenceBlastocystEmbryonic DevelopmentCyclin-Dependent Kinase Inhibitor p21Cyclin BTranscription FactorsCyclin-Dependent Kinase Inhibitor p27PeriodicityTumor Cells, CulturedRetinoblastoma ProteinProtein-Serine-Threonine KinasesDNA-Binding ProteinsG2 Phase Cell Cycle CheckpointsCyclin-Dependent Kinase 2cdc25 PhosphatasesCyclin AFibroblastsXenopus ProteinsDNA ReplicationGene Expression ProfilingG0 PhaseImmunohistochemistryInterphaseDNA DamageReverse Transcriptase Polymerase Chain ReactionG1 Phase Cell Cycle CheckpointsTumor Suppressor Protein p53Circadian RhythmTranscription, GeneticKineticsBlastomeresEmbryonic Stem CellsPhenotypeCyclin D1GastrulaCell AggregationCyclin EBiological ClocksGenes, cdcCyclin B1XenopusVitellinsHeLa CellsCaenorhabditis elegansOligonucleotide Array Sequence AnalysisPregnancyCell SurvivalOocytesTemperatureOvumCyclin-Dependent Kinase 4NeuronsProgesteroneDose-Response Relationship, DrugXenopus laevisTumor Suppressor ProteinsChick EmbryoCulture MediaCDC2-CDC28 KinasesCell LineageMice, Inbred C57BLEndometriumPhase TransitionBlastula