简介:Likethefingerprintsthatcameintousebydetectivesandpolicelabsduringthe1930s,eachpersonhasauniqueDNAfingerprint.Unlikeaconventionalfingerprintthatoccursonlyonthefingertipsandcanbealteredbysurgery,aDNAfingerprintisthesameforeverycell,tissue,andorganofaperson.