"Characterization of the proteins that determine cell shape in archaea may also shed light on the mechanisms underlying other ...

One of these involves fusion between cells from domains Archaea and Bacteria ... Like Cell Biology of a Bacterium Planctomycete cell structure differs from that of all other known prokaryotes.

Prokaryotes are divided into two distinct groups: the bacteria and the archaea, which scientists ... that have a relatively simple structure. Prokaryotic cells are surrounded by a plasma membrane ...

But archaea cells are evolutionarily closer to eukaryotic ... at some point they had to incorporate a nucleus into their basic structure. Some scientists suspect Asgard ancestors developed one ...