History, 16th CenturyHistory, 17th CenturyBehavior ControlCell CycleMenstrual CycleCell Cycle ProteinsEstrous CycleCitric Acid CycleCell Cycle CheckpointsLife Cycle StagesG1 PhaseMitosisS PhaseCell DivisionCyclinsEstrusTime FactorsCyclin-Dependent KinasesMolecular Sequence DataProgesteroneLuteal PhaseFollicular PhaseApoptosisModels, BiologicalCell ProliferationG2 Phase Cell Cycle CheckpointsCyclin-Dependent Kinase Inhibitor p21Cell LineCyclin-Dependent Kinase Inhibitor p27Retinoblastoma ProteinPregnancyActivity CyclesMutationDNA ReplicationPhosphorylationCDC2 Protein KinaseCell Line, TumorFertilization in VitroRNA, MessengerG1 Phase Cell Cycle CheckpointsG0 PhaseProtein-Serine-Threonine KinasesTumor Suppressor Protein p53Amino Acid SequenceBase SequenceDNA-Binding ProteinsCyclin-Dependent Kinase 2MenstruationCells, CulturedSignal TransductionCircadian RhythmCell NucleusCarbon CyclePregnancy Rate