DNA Restriction EnzymesNucleic Acid HybridizationBase SequenceRestriction MappingChromosome MappingOptical Restriction MappingCloning, MolecularGenesPolymorphism, Restriction Fragment LengthMolecular Sequence DataDNA, RecombinantDNABlotting, SouthernCosmidsPlasmidsDeoxyribonucleases, Type II Site-SpecificCaloric RestrictionBacteriophage lambdaAmino Acid SequenceDeoxyribonuclease EcoRIRepetitive Sequences, Nucleic AcidGenes, BacterialSequence Homology, Nucleic AcidDNA, BacterialDNA Transposable ElementsEscherichia coliPolymerase Chain ReactionGenetic LinkageDNA, ViralExonsChromosome DeletionIntronsTranscription, GeneticMultigene FamilyGenomic LibraryMutationGenes, ViralRecombination, GeneticSpecies SpecificityRNA, MessengerGene LibraryPolymorphism, GeneticBiological EvolutionBase CompositionMolecular WeightPeptide MappingEpitope MappingGene Expression RegulationMicroscopy, ElectronBrain MappingFood DeprivationGenetic MarkersPhysical Chromosome MappingFetal Growth RetardationBody Surface Potential MappingGenotypeEpicardial MappingSequence Analysis, DNACrosses, GeneticPhenotypeAllelesContig Mapping