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![Mechanisms regulating mitochondrial DNA quality control](https://image.oaes.cc/978de22f-c83f-479c-b9d7-ece9cabd5273/5810.fig.1.jpg)
Figure 1. Sources of mtDNA perturbations include DNA damage and errors associated with replication machinery resulting in mutations or deletions. Different mechanisms involved in mtDNA quality control: a: mtDNA damage repair, b: mtDNA degradation via POLG,