Cool to see you posting science again, and as always I really enjoyed your sketches.
DNA repair is of great relevance in toxicology aswell, as it's there when damages to the DNA are made permanent (of course the mechanism for single-strand repair are important too).
In the end, DNA repair might be the most important process in our bodies. After all, aging is tied to it too.
It's extremely important. Just with like anything important, errors here can have grave consequences.