DNA Restriction EnzymesDeoxyribonucleases, Type II Site-SpecificCytosineBase SequencePolymorphism, Restriction Fragment LengthMethylationSubstrate SpecificityDeoxyribonucleases, Type I Site-SpecificDNA, BacterialRestriction MappingDeoxyribonuclease EcoRIDNANucleic Acid HybridizationDNA Restriction-Modification EnzymesPlasmidsDNA, ViralElectrophoresis, Agar GelDeoxyribonuclease BamHIDeoxyribonuclease HindIIIPolymerase Chain ReactionDNA, RibosomalMolecular Sequence DataCaloric RestrictionDNA CleavageSite-Specific DNA-Methyltransferase (Adenine-Specific)Cloning, MolecularDNA FingerprintingGenesBlotting, SouthernEscherichia coliBacterial Typing TechniquesDNA, RecombinantSpecies SpecificityChromosome MappingElectrophoresis, Gel, Pulsed-FieldOlivomycinsPolymorphism, GeneticRNA, Ribosomal, 16SDeoxyribonuclease HpaIISequence Analysis, DNAGenes, ViralAdenovirus Infections, HumanGenes, BacterialDNA, Circular