An electron micrograph therefore provides an excellent blueprint of a cell's inner structures ... In contrast, the DNA of prokaryotic cells is distributed loosely around the cytoplasm, along ...

Planctomycetes challenge our concept of the bacterial cell and of a prokaryote as a ... Phylogenetic structure of the prokaryotic domain: the primary kingdoms. Proc Natl Acad Sci U S A 74, 5088 ...