Cloning, OrganismEmbryo ResearchNuclear Transfer TechniquesCloning, MolecularStem CellsMammalsClone CellsMolecular Sequence DataBase SequenceAmino Acid SequenceDNA, ComplementarySequence Homology, Amino AcidSequence AlignmentSequence Analysis, DNAEscherichia coliSequence Homology, Nucleic AcidGenes, BacterialDNARNA, MessengerPhylogenyPlasmidsPolymerase Chain ReactionRecombinant ProteinsRestriction MappingChromosome MappingGenesNucleic Acid HybridizationGene ExpressionBlotting, SouthernDNA, BacterialCell LineBlotting, NorthernDNA Restriction EnzymesMutationDNA PrimersSpecies SpecificityTranscription, Genetic