Thee disease is caused by a defective gene.

这种疾病是由基因缺陷引起的。

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The defective gene interferes with normal body processes.

缺损的基因会扰乱正常的身体变化过程。

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This defective gene was supposed to come from a common ancestor.

这个缺陷基因可能都来自一个共同的祖先。

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In addition to the abnormal GNPTAB gene, Drayna's research team discovered that several other defective genes associated with GNPTAB were also shared by the stutterers.

VOA: standard.2010.02.11

One way is to replace a gene that's defective in a disease.

其中之一是置换,导致某种疾病的缺陷基因

耶鲁公开课 - 生物医学工程探索课程节选

Fisher notes that not every stutterer in the Drayna study had the defective gene, meaning there must be a number of other genes tied to stuttering.

VOA: standard.2010.02.11

But in cystic fibrosis, a defective gene causes the secretions to become thick and sticky.

CNN: Cystic fibrosis

Men have one X and one Y, so a defective gene on the X shows itself readily.

WSJ: New Outlook for Colorblindness

Each of their children has a 50% chance of inheriting the defective gene.

WSJ: New Outlook for Colorblindness