Xenopus laevisXenopus ProteinsXenopusBufonidaeEmbryo, NonmammalianOvumOocytesLarvaMolecular Sequence DataGene Expression Regulation, DevelopmentalMetamorphosis, BiologicalAmino Acid SequenceBase SequenceAnuraRNA, MessengerRanidaeGastrulaMicroinjectionsCloning, MolecularRana pipiensVitellogeninsBlastulaRNA, ComplementaryIn Situ HybridizationSequence Homology, Amino AcidEmbryonic InductionMesodermEctodermRana esculentaDNA, ComplementaryOogenesisCell ExtractsDNATranscription, GeneticMembrane PotentialsMelanophoresRana catesbeianaBody PatterningKineticsRNA, Ribosomal, 5STranscription Factor TFIIIANervous SystemMorphogenesisMusclesCarrier ProteinsRNANucleoplasmins