MuridaeCrosses, GeneticChromosome MappingX ChromosomeMice, Inbred StrainsGenetic LinkageSpecies SpecificityMice, Inbred C57BLBlotting, SouthernPhylogenySequence Analysis, DNAMolecular Sequence DataBase SequenceBiological EvolutionEvolution, MolecularPolymorphism, Restriction Fragment LengthAllelesSkin NeoplasmsPhenotypePolymorphism, GeneticCloning, Molecular