Cloning, OrganismNuclear Transfer TechniquesEmbryo, MammalianEmbryo ImplantationEmbryo, NonmammalianBlastocystChick EmbryoEmbryonic DevelopmentBlastomeresEmbryo ResearchFertilization in VitroEmbryonic and Fetal DevelopmentClone CellsPregnancyEmbryo DispositionMolecular Sequence DataCryopreservationPersonhoodGene Expression Regulation, DevelopmentalCloning, MolecularBeginning of Human LifeBase SequenceZygoteAmino Acid SequenceEmbryo LossPregnancy RateMorulaEmbryo Culture TechniquesEmbryo TransferCulture TechniquesPreimplantation DiagnosisOocytesEctogenesisCleavage Stage, OvumLifeSingle Embryo TransferSperm Injections, IntracytoplasmicMosaicismEmbryologyValue of LifeRNA, MessengerResearch Embryo CreationAnatomy, ArtisticIn Situ HybridizationTheologyIncubatorsZebrafishFetal ViabilityMorphogenesisDNA, ComplementaryMesodermTime FactorsMutationCell LinePrenatal InjuriesEthylene GlycolGestational AgeGastrulaFetal ResearchVitrificationSequence Homology, Amino AcidDNACryoprotective AgentsBody PatterningReproductive TechniquesMoralsYolk SacFertilizationAneuploidyCulture MediaTrophoblastsPregnancy OutcomeCell DifferentiationTranscription FactorsPhenotypeGene ExpressionHomeodomain ProteinsHuman CharacteristicsGerm LayersZona PellucidaPolymerase Chain ReactionTranscription, GeneticNotochordFetusEmbryonic Stem CellsEctodermZebrafish ProteinsGamete Intrafallopian TransferSequence Analysis, DNACell NucleusNucleic Acid HybridizationImmunohistochemistryTotipotent Stem CellsSeedsFallopian TubesSequence AlignmentChromosome AberrationsEndometriumDrosophilaXenopus Proteins