Extraembryonic MembranesOviparitySerous MembraneViviparity, NonmammalianAllantoisChorioallantoic MembraneUterusPregnancyEndodermMembranesMembrane LipidsCell MembraneIntracellular MembranesYolk SacMembrane PotentialsMembranes, ArtificialEmbryo, MammalianGastrulaGene Expression Regulation, DevelopmentalTrophoblastsEctodermErythrocyte MembraneEmbryonic and Fetal DevelopmentMembrane FluidityEmbryonic DevelopmentBlastocystPlacentaAmnionChorionCell Membrane PermeabilityChimeraBasement MembraneGerm LayersEmbryo LossMesodermCell LineageGATA6 Transcription FactorEmbryonic Stem CellsCell DifferentiationIn Situ HybridizationModels, BiologicalDosage Compensation, GeneticMembrane Transport ProteinsBlastodermGenomic ImprintingSOXF Transcription FactorsCell LineMolecular Sequence DataMembrane GlycoproteinsLipid BilayersVisceraEmbryonic InductionCells, CulturedGene TargetingMutationGenes, LethalVitelline DuctChick EmbryoBase SequenceMitochondrial MembranesMorphogenesisBody PatterningMicroscopy, ElectronGerm CellsHyalinProtein TransportEmbryo, NonmammalianSynaptic MembranesX Chromosome InactivationBone Morphogenetic Protein 4Signal TransductionX Chromosome