Sperm CountSperm HeadSperm CapacitationProtein PrecursorsStem CellsCell DifferentiationSperm MaturationSperm TransportSperm-Ovum InteractionsOligodendrogliaSperm Injections, IntracytoplasmicAcrosomeVulvaInfertility, MaleSperm MidpieceFertilizationAmyloid beta-Protein PrecursorCells, CulturedNeural Stem CellsSemenCell LineageSperm BanksGene Expression Regulation, DevelopmentalEpididymisSemen PreservationMolecular Sequence DataNeuronsHematopoietic Stem CellsEnzyme PrecursorsTestisSemen AnalysisZona PellucidaAmino Acid SequenceBase SequenceMice, Inbred C57BLRNA PrecursorsImmunohistochemistryEjaculationFertilityErythroid Precursor CellsBone Marrow CellsNestinCell DivisionSignal TransductionNeurogenesisTranscription FactorsNerve Tissue ProteinsRNA, MessengerCryopreservationSperm WhaleMice, TransgenicMutationCell ProliferationOligospermiaHomeodomain ProteinsBasic Helix-Loop-Helix Transcription FactorsNeurogliaPrecursor Cells, T-LymphoidCell LineCell CountMembrane ProteinsCell MovementNucleic Acid PrecursorsTime FactorsOvumPhenotypeEmbryo, MammalianMonocyte-Macrophage Precursor CellsReceptors, NotchFlow CytometryIn Situ HybridizationCell SeparationProtein Processing, Post-TranslationalAmyloid Precursor Protein SecretasesMice, KnockoutDrosophila ProteinsEmbryo, NonmammalianAstrocytesBone MarrowGreen Fluorescent ProteinsBromodeoxyuridinePregnancyCell SurvivalCaenorhabditis elegansSeminal Plasma ProteinsIntermediate Filament ProteinsModels, BiologicalProtaminesAsthenozoospermiaDrosophilaMorphogenesisMice, Inbred StrainsEmbryonic InductionOsteoclastsMyoblastsDNA-Binding ProteinsCentral Nervous SystemSea UrchinsStem Cell TransplantationGene Expression