The scientists want to locate the position of the gene on a chromosome.

科学家们想找到该基因在染色体上的位置。

《柯林斯英汉双解大词典》

Rhys had acquired a defective gene on the X-chromosome-inherited from his mother.

里斯的X 染色体是一个基因有缺陷（这个X 染色体是从母亲那里继承的）。

youdao

Most isolates carried the NDM-1 gene on plasmids: those from UK and Chennai were readily transferable whereas those from Haryana were not conjugative.

标本中的NDM-1基因多由质粒携带，来自英国和钦奈者极易转移而来自哈利亚纳的NDM-1却不容易被结合。

youdao

And scientists are reporting this week on what they call the "indirect costs" of a virus-resistance gene in Cucurbita.

VOA: special.2009.10.27

I could cut that up into fragments, and I could search in these fragments to try to find the one that has the insulin gene on it.

我把那部分切成碎片,然后从中找到有胰岛素基因的那一段

耶鲁公开课 - 生物医学工程探索课程节选

We're cloning a gene of interest to us by sort of hijacking that biological mechanism by putting our gene on this plasmid and so our gene gets copied many times, as the plasmid gets copied many times.

我们克隆感兴趣的基因的做法,这个生物机制有点像是绑架,我们把基因绑在质粒身上,随着质粒被多次地复制,我们的基因也一起被多次复制

耶鲁公开课 - 生物医学工程探索课程节选

Oculocutaneous albinism type 1 is caused by a mutation in a gene on chromosome 11.

CNN: Albinism

Oculocutaneous albinism type 2 is caused by a mutation in a gene on chromosome 15.

CNN: Albinism

That meant the mutation was almost certainly on a gene on the X chromosome.

FORBES: A Tragic Case And A Genomic Hope