科学家们已经发现了导致这种疾病的基因。

Scientists have discovered the ___gene responsible for causing this disease.

遗传学家研究人类基因以理解遗传性疾病。

Geneticists study human ___genes to understand hereditary diseases.

这个基因的突变可能导致遗传疾病。

Mutations in this ___gene can lead to genetic disorders.