it is currently assumed that the length of telomeres regulates the limit of replication of DNA. the process of repairing and restoring of the length of the telomeres is affecting the limit of replication. the process of repair is too slow, in the currently assumed process of regulation, which leads to the end of the life cycle of the DNA molecules. in some sense it is good, as cancer cells have unlimited replication.
as the telomeres at the ends of chromosomes, with non-essential information, are repeated thousands of times, but the replication limit of DNA in healthy cells is only around fifty to sixty times, then in my opinion the limit of replication isn’t regulated by the length of the telomeres. i think these processes may be correlated in some significant ways, but the length of telomeres is not regulating the DNA replication. something else is in control.
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new science 