Biology of Aging by National Institute of Aging - HTML preview
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What happens when DNA
occurs when a cell divides and passes its
genetic information on to its two daughter
becomes damaged?
cells. During cell division, the telomere, a
stretch of DNA at each end of a chromosome
The impact of age, of course, is not limited
that doesn’t encode any proteins but instead
to organisms. You drive a brand new car
protects the protein-encoding part of the
off the lot, and ideally it’s in perfect work-
DNA, becomes shorter. When the telomere
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GENETICS