prokaryote /pro·kary·ote/ (-kar´e-ōt) a unicellular organism lacking a true nucleus and nuclear membrane, having genetic material composed of a single loop of naked double-stranded DNA. Prokaryotes, with the exception of mycoplasmas, have a rigid cell wall.prokaryot´ic
prokaryote
pro·kar·y·ote or pro·car·y·ote (pr -k r  -t )n. An organism of the kingdom Prokaryotae, constituting the bacteria and cyanobacteria, characterized by the absence of a nuclear membrane and by DNA that is not organized into chromosomes. pro·kar y·otic (- t k) adj. |
prokaryote
[prōker′ē·ōt]
Etymology: Gk, protos + karyon
a unicellular organism that does not contain a true nucleus surrounded by a double membrane; a bacterium. Division usually occurs through simple fission. Also spelled procaryote. Compare eukaryote -prokaryotic, adj.
prokaryote
a unicellular organism lacking a true nucleus and nuclear membrane, having genetic material composed of a single molecule of double-stranded DNA. Prokaryotes with the exception of mycoplasmas have a rigid cell wall. Includes the blue-green algae and bacteria—the Cyanophyceae.
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