Organizers, EmbryonicGoosecoid ProteinNucleolus Organizer RegionBody PatterningNodal Signaling LigandsZebrafish ProteinsZebrafishGene Expression Regulation, DevelopmentalHomeodomain ProteinsNodal ProteinEmbryonic InductionGastrulaXenopus ProteinsIn Situ HybridizationSilver StainingFunctional LateralityEmbryologyOtx Transcription FactorsEmbryo, NonmammalianMesodermXenopusFibroblast Growth Factor 8Genes, HelminthCaenorhabditis elegansTranscription FactorsRhombencephalonNotochordHydraMesencephalonAxisHeadIntercellular Signaling Peptides and ProteinsWnt ProteinsEctodermXenopus laevisBone Morphogenetic ProteinsCaenorhabditis elegans ProteinsTissue TransplantationNervous SystemLIM-Homeodomain ProteinsMorphogenesisSilverCell NucleolusMolecular Sequence DataDominance, CerebralGenes, HomeoboxWnt1 ProteinLeft-Right Determination FactorsActivinsSignal TransductionEndodermMutationVentricular Function, LeftBase SequenceMetencephalonHeartBlastulaT-Box Domain ProteinsFetal ProteinsGlycoproteinsTwins, ConjoinedNeuronsProteinsMovementFibroblast Growth FactorsBrainBlastodermMatrix Attachment Region Binding ProteinsVentricular Dysfunction, LeftChick EmbryoBone Morphogenetic Protein 4Magnetic Resonance ImagingSilver NitrateVentricular Function, RightBrain MappingTransforming Growth Factor betabeta CateninHepatocyte Nuclear Factor 3-betaAmphibiansRepressor ProteinsInhibinsTectum MesencephaliAmino Acid SequenceVentricular Dysfunction, RightNeural PlateHuman RightsTrans-ActivatorsHedgehog ProteinsDrug PackagingProsencephalonChromosomesStaining and LabelingMicroinjectionsHypertrophy, Left VentricularNerve Tissue ProteinsBlastomeresCentral Nervous SystemVertebratesDNA-Binding ProteinsChordata