Source https://www.fightaging.org/archives/2020/02/pttg1-as-prompt-for-discussion-of-the-evolutionary-genetics-of-aging/
Aging is under genetic control in the sense that species have different genomes, different life spans, and different manifestations of aging within those life spans. Within any given species, it is far from clear that genetic variation has a large enough influence to care about. Individuals vary, but the evidence strongly suggests that this is near all due to environmental rather than genetic differences. Where there are genetic differences, the old who survive to benefit from them are still old people, greatly impacted by aging and trapped in a downward spiral of dysfunction.
The author of this commentary uses the gene PTTG1 as a starting point for a discussion of the genetics and evolution of aging acr…
Source https://www.fightaging.org/archives/2020/02/pttg1-as-prompt-for-discussion-of-the-evolutionary-genetics-of-aging/
Aging is under genetic control in the sense that species have different genomes, different life spans, and different manifestations of aging within those life spans. Within any given species, it is far from clear that genetic variation has a large enough influence to care about. Individuals vary, but the evidence strongly suggests that this is near all due to environmental rather than genetic differences. Where there are genetic differences, the old who survive to benefit from them are still old people, greatly impacted by aging and trapped in a downward spiral of dysfunction.
The author of this commentary uses the gene PTTG1 as a starting point for a discussion of the genetics and evolution of aging acr…
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