2. 职称英语
  3. Which of the following is true about the expressed sequence tags? [br] Laying cl

Which of the following is true about the expressed sequence tags? [br] Laying cl

游客2023-09-16  64
问题 Which of the following is true about the expressed sequence tags? [br] Laying claim to DNA stretches can be careless genetics because ______ .
选项 A、those who patent gene fragments are not qualified geneticists
B、the same gene fragments are often patented by different scientists
C、geneticists have no idea what they are going to do with patented genes
D、some of the gene fragments patented contain no real genetic information
答案 D
解析 根据第二段开头的内容可知，基因学家为了获得某一基因串的专利，通常只对基因粗略研究，而并没有仔细了解其中的结构，而且许多基因串所包含的基因信息并没得到确认，因而许多基因串并不真正含有基因信息。另外，从第二段末尾Brace Lehman对科学家申请基因专利的评论也可知[D]为答案。
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