Embryo, MammalianEmbryonic DevelopmentBlastocystEmbryonic and Fetal DevelopmentMammalsGene Expression Regulation, DevelopmentalZygoteEmbryo Culture TechniquesGerm LayersEmbryo, NonmammalianEndodermEmbryonic Stem CellsPregnancyChick EmbryoOocytesOctamer Transcription Factor-3Cell DifferentiationEmbryo ImplantationCell LineageGenomic ImprintingMolecular Sequence DataPluripotent Stem CellsTranscription FactorsBlastomeresCleavage Stage, OvumBase SequenceCulture TechniquesMorulaStem CellsEctodermBody PatterningMice, Inbred C57BLSignal TransductionTotipotent Stem CellsYolk SacMorphogenesisFibroblast Growth Factor 4Fertilization in VitroCells, CulturedBlastocyst Inner Cell MassMesodermIn Situ HybridizationHomeodomain ProteinsMice, Inbred CBAAmino Acid SequenceTissue SurvivalTrophoblastsEmbryo LossNeural CrestRNA, MessengerMice, Inbred ICRCattleDNA-Binding ProteinsGene ExpressionModels, BiologicalTime FactorsGestational AgeMice, TransgenicPhenotypeEmbryo DispositionImmunohistochemistryMice, KnockoutCell LineEpigenesis, GeneticZebrafishSequence Homology, Amino AcidGastrulaCryopreservationCloning, MolecularMutationCell Movement