2. 外语
  3. People in a large area any possess the same DNA thread because______. If two men suspected for some reason they have a common a

People in a large area any possess the same DNA thread because______. If two men suspected for some reason they have a common a

admin2009-04-23  72
问题 People in a large area any possess the same DNA thread because______.
If two men suspected for some reason they have a common ancestor,______.
选项 A、we can decide according to their family tree
B、we can find the truth from their genetic markers
C、we can compare the differences in their Y chromosome
D、we can look for written records to prove their relationship
答案B
解析 细节题。由题干two men可定位至第三段第二句…if two men sharing the same last name…looking for common markers(如果两个同姓的人相信他们有共同的祖先，那么可以通过采集两个人的DNA样本寻找共同的遗传标记来确定这种可能性)，B符合。
转载请注明原文地址:https://www.kaotiyun.com/show/3b37777K
0

大学英语四级

相关试题推荐
随机试题
最新回复(0)