NUCLEOBASE CLOCK. “In the loop structure of telomeres, there exist layers of G-quadruplex (G4). Their structures are similar to the structure with the loop braid group in the standard model. The G letter (guanine) can be suitably chosen as the hidden time scale in a biological clock. The nature of the telomerase enzyme is that it reacts like a retrotransposon hidden in transition state in the non-protein-coding DNA area.
https://www.mdpi.com/2073-8994/12/8/1214/htm