So, if you do the standard behavioral genetic tests, and you by now know how to do them--you'd look for differences between monozygotic and dizygotic twins, you'd do the adoption comparison--you know adopted siblings and biological siblings.

所以， 如果你做标准的行为基因测试，你现在已经知道如何做它们了——你会寻找同卵双胞胎和异卵双胞胎之间的差异，你会做收养比较——你知道收养的兄弟姐妹和亲生兄弟姐妹。