Preimplantation DiagnosisPregnancyEmbryo, MammalianEmbryo, NonmammalianEmbryo ImplantationBlastocystChick EmbryoEmbryonic DevelopmentBlastomeresEmbryo ResearchFertilization in VitroEmbryonic and Fetal DevelopmentEmbryo DispositionCryopreservationPersonhoodBeginning of Human LifeGene Expression Regulation, DevelopmentalZygoteEgg YolkEmbryo LossPregnancy RateMorulaOvumEmbryo TransferEmbryo Culture TechniquesCulture TechniquesOocytesCleavage Stage, OvumEctogenesisSingle Embryo TransferSperm Injections, IntracytoplasmicCloning, OrganismEmbryologyLifeEgg ProteinsMosaicismFertilizationValue of LifeEgg ShellAnatomy, ArtisticIncubatorsTheologyFetal ViabilityIn Situ HybridizationMorphogenesisMesodermResearch Embryo CreationZebrafishPrenatal InjuriesEthylene GlycolEgg WhiteGastrulaCryoprotective AgentsGestational AgeFetal ResearchVitrificationBody PatterningReproductive TechniquesYolk SacZona PellucidaPregnancy OutcomeAneuploidyTrophoblastsMoralsMolecular Sequence DataTime FactorsCulture MediaGerm LayersHuman CharacteristicsHomeodomain ProteinsNuclear Transfer TechniquesNotochordRNA, MessengerEctodermGamete Intrafallopian TransferCell DifferentiationXenopus ProteinsZebrafish ProteinsTranscription FactorsFallopian TubesEmbryonic Stem CellsFetusBase SequenceTotipotent Stem CellsParthenogenesisParasite Egg CountCell NucleusEndometriumPropylene GlycolCatholicismThiepinsSeedsChromosome AberrationsNontherapeutic Human ExperimentationEndodermAmino Acid SequenceDrosophilaImmunohistochemistryBlastodermInfertility, Female