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 ...

A eukaryote is any cell or organism that possesses a clearly defined nucleus. Eukaryotic ... Eukaryotes are thought to have originated through a process known as endosymbiosis, in which an ancestral ...

In addition to the nucleus ... muscle cells in people who exercise regularly possess more mitochondria than muscle cells in sedentary people. Prokaryotes, on the other hand, don't have ...

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 ...

Protein synthesis refers to the process by which cells ... have a different structure, these antibiotics do not significantly ...