Like nuclear DNA, mDNA harbours genes that can mutate and cause disease.

与核d NA一样，mDNA含有可以发生变异而导致疾病的基因。

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But a tiny amount - mitochondrial DNA accounts for less than 1% of all the DNA in a human body - would come from the donor of the mDNA.

但是，其中很少一部分——占人体中所有DNA不到1%的线粒体dna——会来自mDNA的捐赠者。

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