Hybrid CellsHybridization, GeneticCell FusionEnkephalin, Leucine-2-AlanineNeuroblastomaCell LineKaryotypingSuppression, GeneticChromosomes, Human, 16-18Chromosomes, Human, 6-12 and XGliomaChromosome MappingEnkephalin, LeucineReceptors, OpioidChromosomesClone CellsCricetinaeGenesNucleic Acid HybridizationBase SequenceL Cells (Cell Line)Molecular Sequence DataChimeraFibroblastsChromosomes, Human, 4-5Chromosome BandingChromosomes, Human, 13-15Hypoxanthine PhosphoribosyltransferaseChromosomes, Human, 19-20EtorphineCells, CulturedTumor Cells, CulturedRNA, MessengerHybrid VigorChromosomes, Human, 1-3Neoplasms, ExperimentalPhenotypeX ChromosomeLesch-Nyhan SyndromeHybridomasSex ChromosomesSpecies SpecificityCell Transformation, NeoplasticCricetulusKineticsCloning, MolecularChromosomes, Human, 21-22 and YParainfluenza Virus 1, HumanTranscription, GeneticGene Expression RegulationBlotting, SouthernChromosomes, Human, Pair 11DNATime FactorsTransfectionMutationCrosses, GeneticMice, Inbred BALB CReceptors, Opioid, deltaRadiation Hybrid MappingAmino Acid SequenceAntigens, SurfaceCell DivisionMice, Inbred C57BLBucladesineChromosomes, HumanGenetic LinkageGlucose-6-Phosphate IsomeraseCell DifferentiationTeratomaSpleenDiploidyMice, NudeEnkephalin, MethionineGenetic MarkersCell Line, TumorHeLa CellsMorphinansAntibodies, MonoclonalAdenylate Cyclase ToxinPlasmacytomaLiver Neoplasms, ExperimentalAdenylate CyclaseAlprostadilBurkitt Lymphoma