Deoxyribonucleases, Type II Site-SpecificDNA Restriction EnzymesDNA CleavageDNADNA Restriction-Modification EnzymesBase SequencePolymorphism, Restriction Fragment LengthDeoxyribonuclease EcoRISubstrate SpecificityHolliday Junction ResolvasesDNA, BacterialMolecular Sequence DataDNA Topoisomerases, Type IIThermusDNA, ViralDNA Polymerase betaPlasmidsDeoxyribonucleases, Type I Site-SpecificTopoisomerase II InhibitorsDNA Topoisomerases, Type IRestriction MappingAmino Acid SequenceBacteriophage lambdaBinding SitesEscherichia coliDeoxyribonuclease HpaIINucleic Acid HybridizationPolymerase Chain ReactionCaloric RestrictionCatalytic DomainElectrophoresis, Agar GelDeoxyribonuclease BamHIEndodeoxyribonucleasesDeoxyribonuclease HindIIISequence AlignmentCloning, Molecular