Ageing purpose: another thrifty genotype.

Abstract excerpt

For evolutionary biology, ageing is a non-adaptive process. The 'disposable soma' theory proposes that senescence is the consequence of a reduction in the energy invested in the processes of cell maintenance and repair due to the fact that it is more beneficial to invest it in reproduction. Recently, various genes have been identified whose mutations modify the life span of certain animals. Most of these genes...

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