For 10 points, what is this process, which is accelerated in patients with progeria?
A mutation which promotes this process prevents the removal of the farnesyl group from a certain protein and is a point mutation in position 1824 of the LMNA gene. Although not carcinogenesis or apoptosis, this process is also promoted by mutations in the ERCC6 and ERCC8 genes, which leads to Cockayne syndrome.  The Gompertz-Makeham law predicts the likelihood of the most notable result of this process, which normally increases exponentially. Some scientists believe that the (*) hydra does not undergo this process at all. The cellular form of this process is a result of the Hayflick limit. Other animals that exhibit a general lack of symptoms of this process include lobsters, clams and tortoises. For 10 points, what is this process, which is accelerated in patients with progeria?
A mutation which promotes this process prevents the removal of the farnesyl group from a certain protein and is a point mutation in position 1824 of the LMNA gene.
senescence [accept aging; accept other obvious equivalents; be generous and accept telomere shortening; prompt on progeria early]