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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That increased metabolism would, in turn, generate more oxygen-rich molecules of a type known as free radicals, which are potent inducers of mutation.

代谢速率的增加反过来会产生更多的富氧分子，即自由基。 后者这是一种诱发突变的蛋白质。

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Dwarf mice with the same GHR mutation have low cancer rates, increased insulin sensitivity that protects against diabetes, and extended life span.

侏儒鼠拥有相同的GHR突变有着癌症发病率低，增加胰岛素敏感性预防糖尿病，并且延长寿命的特点。

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