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Mitochondria are considered endosymbionts originated from a prokaryote. So, do they have a DNA repair mechanism ?

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Yes, mtDNA can be repaired by enzymes coded by nuclear genes. http://www.ncbi.nlm.nih.gov/pubmed/22992591

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  • $\begingroup$ Could you provide a brief synopsis of this review article for future reference when others come to find this question? $\endgroup$ – user560 Oct 22 '13 at 1:31

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