Hybrid CellsHybridization, GeneticCell FusionEnkephalin, Leucine-2-AlanineNeuroblastomaKaryotypingChromosomes, Human, 16-18Cell LineChromosomes, Human, 6-12 and XChromosome MappingGliomaEnkephalin, LeucineChromosomesReceptors, OpioidClone CellsCricetinaeGenesNucleic Acid HybridizationChimeraL Cells (Cell Line)Base SequenceMolecular Sequence DataChromosomes, Human, 4-5Chromosome BandingSpecies SpecificityChromosomes, Human, 13-15Hypoxanthine PhosphoribosyltransferaseChromosomes, Human, 19-20FibroblastsEtorphineHybrid VigorChromosomes, Human, 1-3X ChromosomeLesch-Nyhan SyndromeHybridomasSex ChromosomesNeoplasms, ExperimentalCricetulusPhenotypeChromosomes, Human, 21-22 and YParainfluenza Virus 1, HumanCloning, MolecularBlotting, SouthernChromosomes, Human, Pair 11KineticsRadiation Hybrid MappingTumor Cells, CulturedReceptors, Opioid, deltaCell Transformation, NeoplasticChromosomes, HumanDNACrosses, GeneticAntigens, SurfaceGenetic LinkageAmino Acid SequenceBucladesineGenetic MarkersGlucose-6-Phosphate IsomeraseTeratomaRNA, MessengerEnkephalin, MethionineDiploidyMorphinansTranscription, GeneticAdenylate Cyclase ToxinCells, CulturedGene Expression RegulationPolymerase Chain Reaction