Neoplasms, Germ Cell and EmbryonalEndodermal Sinus TumorTesticular NeoplasmsGerminomaMixed Tumor, MalignantTeratomaPeplomycinChoriocarcinomaGerm CellsSex Cord-Gonadal Stromal TumorsCarcinoma, EmbryonalSertoli Cell TumorTestisSpermatogenesisSpermatozoaSertoli CellsSeminiferous TubulesSpermatogoniaSpermatocytesSpermatidsGonadsSeminomaMeiosisWheat Germ AgglutininsSeminiferous EpitheliumDysgerminomaOogenesisOvaryGerm LayersGene Expression Regulation, DevelopmentalGametogenesisOogoniaSex DifferentiationNuclear Receptor Subfamily 6, Group A, Member 1Cell DifferentiationTooth GermInfertility, MaleCryptorchidismMediastinal NeoplasmsOctamer Transcription Factor-3OocytesRNA-Binding ProteinsOvumImmunohistochemistryRetroperitoneal NeoplasmsMolecular Sequence DataRNA, MessengerIn Situ HybridizationEmbryo, NonmammalianSperm CountCaenorhabditis elegansSex Determination ProcessesEmbryo, MammalianBlood-Testis BarrierBase SequencePachytene StageDrosophila ProteinsStem CellsCaenorhabditis elegans ProteinsApoptosisalpha-FetoproteinsBleomycinCell LineageFertilityProto-Oncogene Proteins c-kitDEAD-box RNA HelicasesPluripotent Stem CellsReverse Transcriptase Polymerase Chain ReactionEmbryonic DevelopmentDrosophilaMutationDisorders of Sex DevelopmentAmino Acid SequenceTestosterone