Germ CellsNeoplasms, Germ Cell and EmbryonalEmbryo, MammalianEmbryo, NonmammalianTestisSpermatogenesisTesticular NeoplasmsChick EmbryoSpermatozoaGerminomaSertoli CellsEmbryo ImplantationGene Expression Regulation, DevelopmentalSpermatogoniaSeminiferous TubulesEmbryonic DevelopmentSpermatocytesGonadsSpermatidsBlastocystSeminomaMeiosisEmbryonic and Fetal DevelopmentOogenesisPancreatic NeoplasmsGerm LayersOvaryImmunohistochemistryNeoplasmsOocytesWheat Germ AgglutininsEmbryo LossIn Situ HybridizationTeratomaPregnancyCell DifferentiationSeminiferous EpitheliumDysgerminomaBlastomeresGametogenesisMolecular Sequence DataCleavage Stage, OvumNeoplasms, Cystic, Mucinous, and SerousFertilization in VitroRNA, MessengerEndodermal Sinus TumorOogoniaZebrafishMediastinal NeoplasmsZygoteSex DifferentiationNeoplasms, Multiple PrimaryOvumBase SequenceMutationDrosophila ProteinsGastrulaNuclear Receptor Subfamily 6, Group A, Member 1Infertility, MaleCryopreservationSkin NeoplasmsTooth GermTranscription FactorsOctamer Transcription Factor-3DrosophilaMesodermCryptorchidismBody PatterningCaenorhabditis elegansNeoplasms, Second PrimaryEmbryo DispositionAmino Acid SequenceRNA-Binding ProteinsCell LineageMorulaOvarian NeoplasmsReverse Transcriptase Polymerase Chain ReactionTime FactorsBlastodermStem CellsChimeraZebrafish ProteinsCarcinoma, EmbryonalKidney NeoplasmsApoptosisPhenotypeHomeodomain ProteinsDNA-Binding ProteinsAnimals, Genetically ModifiedCaenorhabditis elegans ProteinsMice, Inbred StrainsMice, Inbred C57BLMorphogenesisGene ExpressionEctodermDrosophila melanogasterSignal TransductionCulture TechniquesMice, TransgenicDNA, Neoplasm