n. (genetics) a segment of DNA that is involved in producing a polypeptide chain; it can include regions preceding and following the coding DNA as well as introns between the exons; it is considered a unit of heredity
n. 基因
[化] 基因(遗传因子)
1. A gene is a unit of heredity that can be passed from parents to children.
基因是可以从父母传递给孩子的遗传单位。
2. Scientists study genes to understand how traits are inherited.
科学家研究基因以了解特征是如何遗传的。
3. Some diseases are caused by mutations in specific genes.
一些疾病是由特定基因的突变引起的。