Germ CellsCell LineNeoplasms, Germ Cell and EmbryonalCell Line, TumorSpermatogenesisTestisGonadsWheat Germ AgglutininsGerm-Line MutationGerm LayersMolecular Sequence DataSpermatozoaOogenesisBase SequenceSex Determination AnalysisSpermatogoniaCaenorhabditis elegansCell Line, TransformedMutationCaenorhabditis elegans ProteinsTooth GermGene Expression Regulation, DevelopmentalSpermatocytesRNA, MessengerDrosophila melanogasterSeminiferous TubulesDisorders of Sex DevelopmentMeiosisTesticular NeoplasmsGametogenesisSpermatidsCell DifferentiationPhenotypeAmino Acid SequenceMicronucleus, GermlineDrosophilaChimeraEmbryo, NonmammalianOvaryDrosophila ProteinsStem CellsGenomic ImprintingTranscription, GeneticGerminomaMice, TransgenicCrosses, GeneticSertoli CellsMacronucleusGenes, InsectEndogenous RetrovirusesGene Expression RegulationPolymerase Chain ReactionOocytesEmbryo, MammalianDNAGene ExpressionDNA-Binding ProteinsPromoter Regions, GeneticRNA, HelminthOvumApoptosisX ChromosomeReverse Transcriptase Polymerase Chain ReactionDNA MethylationTranscription FactorsCloning, MolecularIn Situ HybridizationSex DifferentiationTetrahymena thermophilaTeratomaAllelesRNA, Messenger, StoredAnimals, Genetically ModifiedRNA-Binding ProteinsLi-Fraumeni SyndromeMice, Inbred C57BLSignal TransductionRecombination, GeneticDNA PrimersGene TargetingNuclear ProteinsImmunohistochemistryCell LineageOctamer Transcription Factor-3SeminomaZygoteTransfectionCell ProliferationGenesBlotting, SouthernGenes, HelminthImmunoglobulin Variable RegionCells, CulturedRNA InterferenceInfertility, MaleBlotting, WesternMosaicismSex Determination ProcessesDNA Transposable ElementsChromosome Mapping