DNA polymerase 1 and d exonuclease domain mutations in endometrial cancer. (syscol-project.eu)
Enzymes called exonucleases may contribute to aging by chewing up the ends of chromosomes. (sciencemag.org)
DNA had unraveled disproportionately at the exposed ends of the chromosomes, which is what they'd expect to see if exonuclease damage was the first step in genetic instability. (sciencemag.org)