Domain of single-celled organisms lacking membrane-bound nucleus: Bacteria + Archaea. Circular genome in nucleoid; 70S ribosomes; diverse metabolism (phototrophs, chemotrophs, autotrophs, heterotrophs).
Domain of single-celled organisms lacking membrane-bound nucleus: Bacteria + Archaea. Circular genome in nucleoid; 70S ribosomes; diverse metabolism (phototrophs, chemotrophs, autotrophs, heterotrophs).