An organism who cells lack organelles and whose DNA is not arranged in chromosomes, but forms a coiled structure called a nucleoid. Prokaryotic organisms are bacteria and blue-green algae. The traditional distinction between prokaryotes and eukaryotes has had to be revised with the discovery of tublin-like, actin-like and histone-like molecules in arch aeons (found, for example, in deep-sea hydrothermal vents) as these proteins were previously considered only to exist in eukaryotes. Tublin refers to a small hollow, cylindrical structure. However, it is believed that eukaryotes evolved from symbiotic associations between prokaryotes. <\/p>\n
See Actin<\/a>, Cell<\/a>, Cell locomotion<\/a>, Cytoplasm<\/a>, DNA, Eukaryote cell (or organism)<\/a>, Flagella<\/a>, Genome<\/a>, Histone<\/a>, Jacob-Monod operon model<\/a>, Nucleoid<\/a>, Organelles<\/a>, Protoplasm<\/a>, Phototaxis<\/a><\/p>\n <\/body><\/html><\/p>\n","protected":false},"excerpt":{"rendered":" An organism who cells lack organelles and whose DNA is not arranged in chromosomes, but forms a coiled structure called a nucleoid. Prokaryotic organisms are bacteria and blue-green algae. The traditional distinction between prokaryotes and eukaryotes has had to be revised with the discovery of tublin-like, actin-like and histone-like molecules in arch aeons (found, for … <\/p>\n