An electron micrograph therefore provides an excellent ... of a nucleus is considered one of the defining features of a eukaryotic cell. This structure is so important because it is the site ...

Planctomycetes challenge our concept of the bacterial cell and of a prokaryote as a ... Archaebacteria (Archaea) and the origin of the eukaryotic nucleus. Curr Opin Microbiol 8, 630–637 (2005 ...

The completion of chromosome synXVI allows scientists to explore new possibilities in metabolic engineering and strain ...

Eukaryotic cell DNA in a nucleus, plasmids are found in a few simple eukaryotic organisms. Prokaryotic cell DNA is a single molecule, found free in the cytoplasm; additional DNA is found on one or ...