XX年英语四级考试阅读复习指导

XX年英语四级考试阅读复习指导xx年英语四级考试阅读复习指导　　形成天才的.决定因素应该是勤奋下面是网为大家的xx年英语四级阅读复习指导，欢迎参考~　　A controversyerupted in the scientificmunity inearly1998over theuse ofDNA deoxyribonucleicacidfingerprinting in criminal investigations.DNA fingerprintingwas introducedin1987as amethod toidentify individualsbased ona patternseen intheir DNA,the moleculeof whichgenes aremade.DNA ispresent inevery cellof thebody exceptred bloodcells.DNA fingerprinting has beenused suessfullyin variousways,such asto determinepaternity whereit isnot clearwho thefather ofa particularchild is.However,it isinthearea ofcriminal investigationsthat DNA fingerprintinghaspotentially powerfuland controversialuses.　　DNAfingerprintingand otherDNA analysistechniques haverevolutionized criminalinvestigations bygiving investigatorspowerful newtools inthe attemptto troveguilt,not justestablish innocence.When usedincriminalinvestigations,a DNAfingerprint patternf...。