For example, the hereditary hemochromatosis mutation protects carriers from iron-deficiency because the mutated gene allows increased efficiency of iron absorption.

例如，因为突变的基因可以提高铁的吸收效率，所以遗传性血色素沉着病突变可以保护带菌者不缺铁。

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We have to do in-vitro cell culture experiments first, prove it in an animal model, and then develop a molecule or protein which will affect the mutated gene product.

我们首先得做一个体外细胞培养实验，在动物模型中证明它的存在，然后开发出一种能影响突变基因产物的分子或蛋白质。

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When mutated, the gene causes a tumor, but one that the rat's immune system can attack and destroy.

基因突变时会引发肿瘤，但是是一个老鼠的免疫系统能攻击和摧毁的。

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But keep in mind that the scientists say this mutated gene may be rare.

VOA: special.2009.08.26

If one gene is mutated, a duplicate gene may function in its place.

FORBES: Why You Should Fear Giant Databases With Your DNA

Genentech's breast cancer drug Herceptin works only in women whose cancer has a particular mutated gene.

FORBES: Why Cancer Drugs Need Genetic Testing

At this point, a woman can undergo the more complex genetic test to confirm the presence of the mutated gene.

BBC: DNA spiral