Prokaryotes are organisms whose cells lack a nucleus and other organelles. Prokaryotes are divided into two distinct groups: the bacteria and the archaea, which scientists believe have unique ...

Thus, eukaryotes are archaebacterial genetic chimeras ... such as the complex endomembrane system and cytoskeleton, remains a matter of debate (Embley & Martin 2006). One hypothesis holds that ...

Unlike prokaryotic cells, all eukaryotic cells have nuclei. Nuclei house most of a cell’s genetic information – much of it in the form of DNA – making a nucleus a sort of blueprint for building future ...

The researchers are confident that the cytoskeleton was an important step in the evolution of eukaryotes. "This remarkable cytoskeleton was probably at the beginning of this development.

Mitochondria and chloroplasts evolved from endosymbiotic associations between an ancestral host cell and smaller prokaryotic partners. In the case of chloroplasts ... The broth also contains filaments ...