Sentences with phrase «physical ends of chromosomes»
For example, one such surface on a protein ensures that telomerase can find its way to the physical ends of chromosomes.
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The study, publishing online January 18 in the American Journal of Epidemiology, found elderly women with less than 40 minutes of moderate - to - vigorous physical activity per day and who remain sedentary for more than 10 hours per day have shorter telomeres — tiny caps found on the ends of DNA strands, like the plastic tips of shoelaces, that protect chromosomes from deterioration and progressively shorten with age.