Do donated organs age according to the donor´s age or do they adapt to the age of the new body?
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“Aging” as far as we know is the result of the telomeres, the tips of the chromosomes which store your DNA, shortening with each cell division.
These don’t get longer if the organ whose cells they’re in is transplanted but instead continue to get shorter abd thus age accordingly so yes, the organ continues to age the same as it did before.
The shortening of the telomeres was actually a huge problem with cloning Dolly, since the cells she was created from were already much older than the cells of a newborn sheep should be.
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