Why does cell division at unicellulars prolong life?

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mr02077
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Why does cell division at unicellulars prolong life?

Post by mr02077 » Fri Apr 26, 2019 5:44 pm

Why would cell division be a mean that prolongs life of a unicellular?

In many encyclopedias you can read life is mortal due to multiple reasons (mutations in nuclear and mitochondrial DNA, DNA methylation, shortening of telomeres, accumulation of waste material and free radicals). All those negative impacts are accumulated in a cell mass that is to divide, so from my standpoint, division would be just splitting in two material that would be equally close to death in the life path, as it was before the division.

I do not see what is rejuvenating in cell division, as we here talk about mitosis of unicellulars (almost no gene recombination to revitalize the gene pool and it is not like cell multiplication in multicellulars that obviously helps to regenerate tissues)

Thank you for spending time to give your input !

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