Final answer:
Option 4 (White blood cells have a biological clock due to the telomeres shortening) is not exclusively associated with Eukaryotic Telomeres, since all somatic cells experience telomere shortening with age, not just white blood cells.
Step-by-step explanation:
The question pertains to aspects not associated with Eukaryotic Telomeres. Upon examining the options provided, all but one are indeed related to telomeres. The correct answer is option 4) White blood cells have a biological clock due to the telomeres shortening. While telomeres do shorten with each cell division and this is associated with aging, which is a sort of biological clock, white blood cells are not distinct in this regard. All somatic cells, not exclusively white blood cells, are subject to telomere shortening that contributes to the aging process. This shortening acts as a biological clock for all cells with linear chromosomes and not just for white blood cells.
Telomerase is an enzyme that extends telomeres and thus plays a role in cellular aging and immortality in cancer cells. It is active in germ cells, adult stem cells, and some cancer cells, which is what enables these cells to divide without the typical telomere shortening that occurs in most somatic cells. The absence of telomerase activity in most somatic cells leads to progressive shortening of telomeres with each cell division, ultimately contributing to senescence or cellular aging.