Asking endosymbionts to do an enzyme’s ȷob [Biological Sciences]

Zachar et al. (1) present a mathematical model for the origin of mitochondria in which the initial role of the mitochondrial symbiont was that of a food particle for its host. In their model, the bacterial endosymbiont can be freely acquired by a phagocytosing, amitochondriate host cell [an archezoan, in...

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