Gene

例句：

1. 1. The gene for blue eyes is dominant in my family.
   我家族中蓝眼睛的基因是显性的。
2. 2. Scientists are trying to understand the genetic basis of disease.
   科学家们正在试图理解疾病的遗传基础。
3. 3. The gene responsible for red hair was discovered by a scientist.
   一个科学家发现了导致红发基因的原因。