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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McKenzie has mitochondrial disease, a debilitating condition that deprives the body of energy and damages cells in the heart, liver, skeletal muscles, respiratory systems and brain.