SpermatogenesisInfertility, MaleInfertilityInfertility, FemaleTestisSpermatidsSpermatozoaSpermatocytesSeminiferous TubulesSertoli CellsSpermatogoniaSperm CountAzoospermiaFertilityOligospermiaSeminiferous EpitheliumSperm MotilityReproductive Techniques, AssistedMeiosisGerm CellsBlood-Testis BarrierVaricoceleTestosteroneContraceptive Agents, MaleEpididymisSemenFallopian Tube DiseasesChromosomes, Human, YCryptorchidismLeydig CellsPregnancySemen AnalysisFollicle Stimulating HormoneFertilization in VitroTesticular DiseasesReproductive TechniquesOrgan SizeY ChromosomePachytene StageSpermatogenesis-Blocking AgentsSperm TailAsthenozoospermiaEndometriosisHysterosalpingographyProtaminesSertoli Cell-Only SyndromeSeminal Plasma ProteinsSperm MaturationPregnancy RateGonadotropinsSperm HeadSperm Injections, IntracytoplasmicSexual MaturationAntispermatogenic AgentsAcrosomeSex Chromosome Disorders of Sex DevelopmentClomipheneSex Chromosome AberrationsLuteinizing HormoneHypogonadismFertilizationGene Expression Regulation, DevelopmentalAnovulationOogenesisMolecular Sequence DataKlinefelter SyndromeInsemination, ArtificialSeminal VesiclesMice, KnockoutOvulation InductionRNA, MessengerInhibinsReproductive MedicineGenitalia, MaleMeiotic Prophase IReproductionOvarySperm RetrievalGametogenesisFertility Agents, FemaleOrchitisImmunohistochemistryBase SequenceVasectomyInseminationRNA-Binding ProteinsTesticular NeoplasmsMice, Inbred C57BLGonadotropin-Releasing HormoneReverse Transcriptase Polymerase Chain ReactionReceptors, FSHAndrogensMice, Mutant StrainsAmino Acid SequenceHaploidyDisorders of Sex DevelopmentCryopreservationPregnancy OutcomeIn Situ HybridizationEmbryo Transfer