All single-celled organisms are not alike. Or are they? A Northwestern University study has found a surprising similarity among four quite different organisms. The simplest organism, a bacterium ...

Metabolic pathways may seem arbitrary and unnecessarily complex. In many cases, a chemist might devise a simpler route for the biochemical transformation, so why has nature chosen such complex ...

A new study of four single-celled organisms had some surprising results. The organisms, which differed in size and complexity of each organism's genome, used the same number of biochemical reactions ...