Twinning, MonozygoticGenetic DeterminismCloning, OrganismCloning, MolecularEmbryo, MammalianEmbryo, NonmammalianMolecular Sequence DataChick EmbryoAmino Acid SequenceBase SequenceEmbryo ImplantationDNA, ComplementarySequence Homology, Amino AcidBlastocystEmbryonic DevelopmentGene Expression Regulation, DevelopmentalSequence AlignmentRNA, MessengerRestriction MappingEmbryonic and Fetal DevelopmentEmbryo LossGenes, BacterialEscherichia coliGene LibrarySequence Homology, Nucleic AcidFertilization in VitroDNAGene ExpressionBlastomeresCleavage Stage, OvumSequence Analysis, DNAPregnancyRecombinant ProteinsIn Situ HybridizationPlasmidsBlotting, NorthernChromosome MappingZebrafishPolymerase Chain ReactionBlotting, SouthernOocytesDNA PrimersMorulaZygoteEmbryo DispositionNuclear Transfer TechniquesGenesMutationGastrulaNucleic Acid HybridizationDNA, BacterialTranscription, GeneticCryopreservationBody PatterningPhylogenyTissue DistributionEmbryo ResearchOpen Reading FramesDNA Restriction EnzymesTranscription FactorsMorphogenesisCell LineZebrafish ProteinsMesodermCulture TechniquesGenetic Complementation TestGenetic VectorsSingle Embryo TransferOrgan SpecificityXenopus laevisDNA, RecombinantCattlePhenotype