While prokaryotic cells do not have membrane-bound structures, they do have distinct cellular regions (Figure 1). In prokaryotic cells, DNA bundles together in a region called the nucleoid. Primitive ...

so a dilemma of the 1960s was how the bottom strand in this diagram was synthesized. The asymmetric nature of the replication fork was recognized by the early 1970s: the leading strand grows ...

Bacteria and Archaea, the other two domains of life, are prokaryotic cells. They do not possess membrane-bound cellular compartments, such as nuclei. Both eukaryotic and prokaryotic cells bear a ...

Flagella are primarily used for cell movement and are found in prokaryotes as well as some eukaryotes. The prokaryotic flagellum spins, creating forward movement by a corkscrew shaped filament.

Prokaryotes, on the other hand—one celled organisms like bacteria—are simple, with a notable lack of internal membrane enclosed structures (i.e., nuclei) in their one and only cell.