Pachytene StageSpermatocytesSpermatogenesisSpermatidsMeiosisTestisSynaptonemal ComplexProphaseChromosome PairingMeiotic Prophase ISertoli CellsSeminiferous TubulesSpermatozoaSeminiferous EpitheliumSpermatogoniaCrossing Over, GeneticGerm CellsSex ChromosomesChromosomesTriethylenemelamineChromosomes, PlantInfertility, MaleXYY KaryotypeY ChromosomeIn Situ Hybridization, FluorescenceRecombination, GeneticChromosome StructuresMiosisCoprinusLeydig CellsNuclear ProteinsHistonesSperm CountOogenesisMolecular Sequence DataChromosomes, Artificial, BacterialRNA, MessengerChromosomes, FungalCentromereIn Situ HybridizationOocytesBase SequenceCell Cycle ProteinsHeterochromatinX ChromosomeCyclin A1Blotting, NorthernFertilitySpores, FungalKaryotypingEpididymisDNA-Binding ProteinsChromatinImmunohistochemistryChromosome MappingCell NucleusNuclear Receptor Subfamily 6, Group A, Member 1MetaphaseSexual MaturationSaccharomyces cerevisiae ProteinsDNA Breaks, Double-StrandedOvaryOligospermiaChromosome SegregationRNA ProbesEndodeoxyribonucleasesMicroscopy, ElectronGene Expression Regulation, DevelopmentalEthylene GlycolsInfertilityCaenorhabditis elegans ProteinsPloidiesCaenorhabditis elegansOkadaic AcidAmino Acid SequenceDNA RepairSaccharomyces cerevisiaeRats, Sprague-DawleyMutationPhysical Chromosome MappingSex Chromosome AberrationsTranscription FactorsHaploidyOrgan SizeEsterasesZea maysMice, KnockoutNucleoside Diphosphate SugarsDNASeminal VesiclesAneuploidyX-RaysDisorders of Sex DevelopmentCell NucleolusFungal ProteinsDNA, ComplementaryRad51 RecombinaseRNA, Small UntranslatedGene ExpressionPoly Adenosine Diphosphate Ribose