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  2. Relationship between telomeres and longevity - Wikipedia

    en.wikipedia.org/wiki/Relationship_between...

    Extending telomeres can allow cells to divide more and increase the risk of uncontrolled cell growth and cancer development. [24] A study conducted by Johns Hopkins University challenged the idea that long telomeres prevent aging. Rather than protecting cells from aging, long telomeres help cells with age-related mutations last longer. [13]

  3. Aging in dogs - Wikipedia

    en.wikipedia.org/wiki/Aging_in_dogs

    Older dogs, similar to this 10-year-old Neapolitan Mastiff, often grow grey hairs on their muzzles, and some dogs grow grey hair all over. Not all dogs gain grey hair when aging. Aging in dogs varies from breed to breed, and affects the dog's health and physical ability. As with humans, advanced years often bring changes in a dog's ability to ...

  4. Maximum life span - Wikipedia

    en.wikipedia.org/wiki/Maximum_life_span

    In animal studies, maximum span is often taken to be the mean life span of the most long-lived 10% of a given cohort. By another definition, however, maximum life span corresponds to the age at which the oldest known member of a species or experimental group has died. Calculation of the maximum life span in the latter sense depends upon the ...

  5. How long do dogs live? We checked with a vet - AOL

    www.aol.com/lifestyle/long-dogs-live-checked-vet...

    How long do dogs live is a question on many pet parents' minds. We spoke to a vet to find out the answer. Skip to main content. 24/7 Help. For premium support please call: 800-290 ...

  6. Experts Reveal the 6 Surprising Indicators of Longevity You ...

    www.aol.com/experts-reveal-6-surprising...

    In a world of fitness trackers built to optimize, the greatest indicators of longevity aren't what you expect.

  7. Biological immortality - Wikipedia

    en.wikipedia.org/wiki/Biological_immortality

    Their longevity may be due to telomerase, an enzyme that repairs long repetitive sections of DNA sequences at the ends of chromosomes, referred to as telomeres. Telomerase is expressed by most vertebrates during embryonic stages but is generally absent from adult stages of life. [ 23 ]

  8. Mega-telomere - Wikipedia

    en.wikipedia.org/wiki/Mega-telomere

    However, mega-telomeres are substantially longer than regular telomeres, ranging in size from 50 kilobases to several megabases (for comparison, the normal length of vertebrate telomeres is usually between 10 and 20 kilobases). [1] Telomeres act like protective caps for the chromosome. During cell division, a cell will make copies of its DNA.

  9. Telomere - Wikipedia

    en.wikipedia.org/wiki/Telomere

    Telomere length varies greatly between species, from approximately 300 base pairs in yeast [24] to many kilobases in humans, and usually is composed of arrays of guanine-rich, six- to eight-base-pair-long repeats. Eukaryotic telomeres normally terminate with 3′ single-stranded-DNA overhang ranging from 75 to 300 bases, which is essential for ...