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A little wonder, every day

Cell division does not guarantee immortality

Сканувальна електронна мікрофотографія E. coli, NIAID; не часовий ряд клітинних родоводів 2005 року / NIAID scanning electron micrograph of E. coli; not the 2005 cell-lineage time series.

Сканувальна електронна мікрофотографія E. coli, NIAID; не часовий ряд клітинних родоводів 2005 року / NIAID scanning electron micrograph of E. coli; not the 2005 cell-lineage time series.

Listen to fact0:00 / —

Single-celled organisms can die, and binary fission does not make every cell immortal. A 2005 Escherichia coli experiment found that cells inheriting an older pole grew more slowly on average and had a greater chance of death. Apparently symmetrical division need not be functionally symmetrical. This concerns a particular bacterium and conditions, rather than one aging pattern shared by all microorganisms.