Heritable mutations of ALAS2 gene are responsible for the human X-linked sideroblastic anemia.

ALAS2基因的可遗传突变是人类X连锁铁粒幼细胞性贫血的原因。

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The disease is autosomal-recessive and linked to the X-chromosome, so that men whose mothers are carriers of the gene manifest the disease.

该病属常染色体隐性遗传，与X-染色体关联，所以，母亲是基因携带者的男性表现为发病。

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For example, in a gene therapy trial for X-SCID - or "bubble-boy" disease - inserting a gene in the wrong place triggered cancer in some of the recipients.

比如，在X光免疫缺陷和“泡泡男孩”疾病的基因疗法试验中，就因基因植入错误而引发了试验者的癌症。

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The idea of an X-Factor as the winning gene is as true for people as it is for businesses, says Poulfelt, noting individuals like Mozart, Steve Jobs and Bill Gates -- who all managed to tap into a unique skill or quality to stand out from the crowd.

CNN: Have you got the career X-Factor?

Some equipment makers hope for a faster path in which doctors practicing a new medical specialty emerge to evaluate and interpret gene scans, as radiologists do with X-rays.

FORBES: Health

George Church of Harvard Medical School is an adviser to most of the gene-sequencer makers and serves on the board of the Archon X Prize.

FORBES: Magazine Article