Hybrid CellsPhenotypeHybridization, GeneticCell FusionEnkephalin, Leucine-2-AlanineNeuroblastomaKaryotypingCell LineChromosome MappingChromosomes, Human, 16-18Chromosomes, Human, 6-12 and XGliomaEnkephalin, LeucineMolecular Sequence DataMutationBase SequenceClone CellsChromosomesGenesReceptors, OpioidCricetinaeNucleic Acid HybridizationChimeraFibroblastsL Cells (Cell Line)Chromosomes, Human, 4-5Hypoxanthine PhosphoribosyltransferaseChromosomes, Human, 13-15Chromosome BandingAmino Acid SequenceChromosomes, Human, 19-20EtorphineX ChromosomeCloning, MolecularSpecies SpecificityCrosses, GeneticGenotypeGenetic LinkageCell DifferentiationCells, CulturedHybrid VigorCell Transformation, NeoplasticRNA, MessengerChromosomes, Human, 1-3Lesch-Nyhan SyndromeTumor Cells, CulturedHybridomasBlotting, SouthernSex ChromosomesAllelesNeoplasms, ExperimentalCricetulusGenetic MarkersGene Expression RegulationDNAChromosomes, Human, 21-22 and YGenetic Complementation TestTranscription, GeneticKineticsAntigens, SurfaceChromosomes, Human, Pair 11Parainfluenza Virus 1, HumanMice, Inbred C57BLPolymerase Chain ReactionRadiation Hybrid MappingChromosomes, HumanSuppression, GeneticCell DivisionReceptors, Opioid, deltaTransfectionDiploidyBucladesineGlucose-6-Phosphate IsomeraseMice, Inbred BALB CTeratomaGene ExpressionTranscription FactorsChromosome DeletionRestriction MappingFluorescent Antibody TechniqueEnkephalin, MethionineTime FactorsAntibodies, MonoclonalHeLa CellsBurkitt LymphomaAdenylate Cyclase ToxinMorphinansMembrane ProteinsElectrophoresisEmbryo, MammalianRNAMice, Inbred StrainsGlucosephosphate DehydrogenaseEscherichia coliDNA Restriction Enzymes