paired sib method

例句：

1. 1. The researchers used the paired sib method to study the genetic effects of environmental factors on disease susceptibility.
   研究人员使用配对的近亲方法研究环境因素对疾病易感性的遗传影响。
2. 2. In this study, we applied the paired sib method to compare the genetic differences between different ethnic groups.
   在这项研究中，我们应用配对的近亲方法来比较不同种族群体之间的遗传差异。
3. 3. The paired sib method is a powerful tool for studying the relationship between genes and phenotypes in complex diseases.
   配对的近亲方法是一种强大的工具，用于研究复杂疾病中的基因与表型之间的关系。