Its nucleus, such as it is, is not nearly as sophisticated as that of complex cells, and genetically it is very much like other bacteria. (newscientist.com)
Yet, whereas the cells of bacteria and other microbes are small and simple, all visible life, including us humans, is generally made up of large and complex cell types. (sciencedaily.com)
They then replaced one of a living yeast cell's natural chromosomes with it — the first time this had been done in more complex cells with a nucleus. (newscientist.com)