polymorphic locus

例句：

1. 1. The study of genetic polymorphism is crucial for understanding the evolution of species.
   研究遗传多态性对于理解物种的进化至关重要。
2. 2. Polymorphism is a common feature in many populations, leading to differences in physical characteristics.
   多态性是许多群体中常见的特征，导致身体特征的差异。
3. 3.In this study, we identified several polymorphic loci that may be involved in disease susceptibility.
   在这项研究中，我们识别出了几个可能与疾病易感性有关的多态位点。