Sometimes, when something is broken, the first step to fixing it is to break it even more. Scientists have discovered this is the case for a DNA-repairing enzyme that marks then further breaks damaged DNA. Their surprising findings have provided much-needed insight into how DNA repair works in healthy cells, as well as how different mutations can translate into different diseases and cancer.
from Health & Medicine News -- ScienceDaily https://www.sciencedaily.com/releases/2020/06/200622095035.htm
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