single-gene mutant

例句：

1. 1. The study of genetics is essential for understanding the origins of diseases and developing treatments.
   研究遗传学对于理解疾病的起源和发展治疗方法至关重要。
2. 2. In this research, we focused on the role of single-gene mutations in disease development.
   在这一研究中，我们专注于单基因突变在疾病发展中的作用。
3. 3.The discovery of a new drug candidate could potentially cure a rare genetic disorder affecting millions of people.
   发现一种新的药物候选分子可能有望治愈影响数百万人的罕见遗传性疾病。