MorphogenesisSOS1 ProteinSOS Response (Genetics)ras ProteinsGenes, rasProto-Oncogene Proteins p21(ras)Oncogene Protein p21(ras)Gene Expression Regulation, DevelopmentalSignal TransductionMutationras GTPase-Activating Proteinsras Guanine Nucleotide Exchange FactorsMesodermMolecular Sequence DataEpitheliumIn Situ HybridizationBody PatterningEmbryo, NonmammalianAmino Acid SequencePhenotypeCell PolarityEpithelial CellsDrosophila ProteinsCell DifferentiationUreterZebrafishRec A RecombinasesTranscription FactorsOrganogenesisGRB2 Adaptor ProteinModels, BiologicalDrosophilaHomeodomain ProteinsBase SequenceZebrafish ProteinsHyphaeProto-Oncogene Proteins c-rafCell ShapeCell MovementMembrane ProteinsCell DivisionOrgan Culture TechniquesFibroblast Growth Factor 10OdontogenesisAnimals, Genetically ModifiedProteinsChick EmbryoGuanine Nucleotide Exchange FactorsCell LineToothMammary Glands, AnimalFungal ProteinsEmbryo, MammalianSequence Homology, Amino AcidCells, CulturedActinsProtein-Serine-Threonine KinasesMice, TransgenicSon of Sevenless Protein, DrosophilaEscherichia coliMice, KnockoutBone Morphogenetic ProteinsCadherinsDNA-Binding ProteinsHair FollicleEmbryonic and Fetal DevelopmentGTPase-Activating ProteinsCaenorhabditis elegansFibroblast Growth FactorsEpidermisProtein BindingImmunohistochemistryHedgehog ProteinsEctodermRecombinant Fusion ProteinsExtremitiesProto-Oncogene ProteinsCell AdhesionMutagenesisRNA, MessengerPhosphorylationCell ProliferationBranchial RegionDrosophila melanogasterEmbryonic Developmentras-GRF1Microscopy, ElectronDNA PrimersTooth GermCaenorhabditis elegans ProteinsExtracellular MatrixWnt ProteinsWingAdaptor Proteins, Signal TransducingEnzyme ActivationCytoskeletonVulvaEyeSubmandibular GlandFeathers