A-A+
The possible research of family trees is based
问题详情
The possible research of family trees is based on the fact that______.
A．genetics has achieved a breakthrough
B．genetic information contained in DNA can be revealed now
C．each individual carries a unique record of who he is and how he is related to others
D．we can use DNA to prove how distant an individual is to a family, a group or a population
参考答案
正确答案：C
解析：语义题。基于第一段第二、三句，我们知道遗传标记提供独有的识别特征把人们连接在一起，形成家族树。换句话说，能对家族树进行研究，是因为遗传标记的独有特征可以用来判断一个人的基因身份以及这个人与他人之间的关系。所以正确答案为C。
