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2003年12月13日晚,伊拉克前总统萨达姆在他的家乡提克里特附近一家农场的地下室被捕,驻伊美军在短时间内便确认了其身份。让一些DNA鉴定专家大吃一惊。英国DNA测试专家亚历克·杰弗里斯在接受《新科学家》杂志采访时认为,尽管美军在很短的时间内取得DNA测试的结果让人吃惊,但从理论上分析,只要得到被检者的血液或唾液样本,一般在数小时之内完成测试是可行的。专家介绍说,DNA测试分3个阶段进行。首先,利用从被检者身上提取的细胞涂片制成DNA样本,美军是从萨达姆口腔中取得细胞涂片的。接着,利用一种叫做聚合酶链反应的技术将DNA样本放大。最后,利用放大的DNA数据分析被检者的基因图谱。整个过程最短需耗时7个
On the evening of December 13, 2003, former Iraqi President Saddam was arrested in the basement of a farm near his hometown of Tikrit and the U.S. military in Iraq confirmed his identity in a short time. Let some DNA appraisal experts take a surprise. In an interview with New Scientist magazine, British DNA testing expert Alec Jeffries argued that although the results of the US military’s acquisition of DNA testing in a short period of time were surprising, theoretical analysis provided that only the subjects were tested. The blood or saliva samples are generally tested within hours. According to experts, DNA testing is conducted in three phases. First, DNA samples were made from cell smears extracted from the subjects. The US military took cell smears from Saddam’s mouth. Next, a DNA sample is amplified using a technique called polymerase chain reaction. Finally, the amplified person’s genetic map was analyzed using amplified DNA data. The shortest process takes 7