Preimplantation DiagnosisBlastomeresPrenatal DiagnosisEmbryonic DevelopmentAneuploidyPregnancyFertilization in VitroGenetic Diseases, InbornBlastocystPolymerase Chain ReactionIn Situ Hybridization, FluorescenceMorulaEmbryo Culture TechniquesCleavage Stage, OvumZygoteEmbryonic and Fetal DevelopmentEmbryo, MammalianEmbryo ImplantationOocytesEctogenesisSex PreselectionEmbryo TransferGene Expression Regulation, DevelopmentalDelayed DiagnosisEarly Diagnosis