This has been completely contradicted by recent research that compares groups moresimilar to each other.
这与最近的一项研究结果完全矛盾,该研究对彼此更加相似的群体进行了比较。
2
If identical twins are moresimilar to each other with respect to an ailment than fraternal twins are, then vulnerability to the disease must be rooted at least in part in heredity.