2. 职称英语
  3. Before DNA fingerprinting is used, suspects ______. [br] According to the passag

Before DNA fingerprinting is used, suspects ______. [br] According to the passag

游客2023-09-17  38
问题 Before DNA fingerprinting is used, suspects ______. [br] According to the passage, DNA fingerprinting can be unreliable when ______.
选项 A、the methods used of blood cell calculation are not accurate
B、two different individuals of the same ethnic group may have the same DNA fingerprinting pattern
C、a match is by chance left with fingerprints that happen to belong to two different individuals
D、two different individuals leave two DNA samples
答案 B
解析 文章第三段倒数第二句提到，In particular，they argued that the current method cannot properly；determine the likelihood that two DNA samples will match because they came from the same individual rather than simply from two different individuals who are members of the same ethnic group(基因学家争论说目前的方法还不能确定两个相匹配的DNA样品是来自同一个人，或者仅仅是来自同一个民族的不同的人)，这是本篇文章争论的要点。由此推断出，当两个来自同一民族的不同的人有着相同的DNA指纹模式时，DNA指纹鉴定便不可靠了。
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