prokaryote

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prokaryote

 [pro-kar´e-ōt]
any member of the kingdom Monera; a unicellular organism lacking a true nucleus and nuclear membrane, having genetic material composed of a single loop of naked double-stranded DNA. The microorganisms, comprising the bacteria and blue-green bacteria (formerly blue-green algae), are predominantly unicellular but may have filamentous, mycelial, or colonial forms. Prokaryotes, with the exception of genus Mycoplasma, have a rigid cell wall. adj., adj prokaryot´ic.

pro·kar·y·ote

(prō-kar'ē-ōt),
A member of the superkingdom Prokaryotae; an organismic unit consisting of a single and presumably primitive moneran cell, or a precellular organism, which lacks a nuclear membrane, paired organized chromosomes, a mitotic mechanism for cell division, microtubules, and mitochondria.
See also: Prokaryotae, Monera, eukaryote.
Synonym(s): procaryote

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

also

procaryote

(prō-kăr′ē-ōt′)
n.
Any of various microorganisms of the domains Archaea and Bacteria, characterized by the absence of a distinct membrane-bound nucleus and membrane-bound organelles and by the simultaneous occurrence of DNA transcription and protein synthesis at the same site, in contrast to eukaryotes. Also called moneran.

pro·kar′y·ot′ic (-ŏt′ĭk) 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.

pro·kar·y·ote

(prō-kar'ē-ōt)
A member of the superkingdom Prokaryotae; an organism consisting of a single cell, or a precellular organism, which lacks a nuclear membrane, paired organized chromosomes, a mitotic mechanism for cell division, microtubules, and mitochondria.
See also: eukaryote
Synonym(s): procaryote.

prokaryote

or

prokaryote

any organism, including those in the domains BACTERIA or ARCHAEA, that lacks a membrane-bound nucleus and has no MITOSIS or MEIOSIS. Organelles such as the MITOCHONDRION and the ENDOPLASMIC RETICULUM are also lacking. Compare EUKARYOTE and See Fig. 155 .

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.
References in periodicals archive ?
Prokaryotic cells have no nucleus, whereas eukaryotic cells do have a distinct nucleus that can undergo division to produce new cells.
com, and MSN Live Search, find more information by searching for these words or phrases: plant cell structure, prokaryotic cells, eukaryotic cells, plant primary cell wall, plant secondary cell wall, membranes, organelles, mitochondrion, plastids, chloroplasts, endoplasmic reticulum, ribosomes, Golgi apparatus, and microtubules.
Prokaryotic cells reproduce by binary fission, where one cell (the parent cell) splits in half to become two daughter cells identical to the parent.
G418 is one of the aminoglycoside antibiotics, which is toxic to both prokaryotic cells and eukaryotic cells.
The gill buds of these young clams are just beginning to form filaments, and subcellular inclusions resembling prokaryotic cells can be identified inside the unciliated cells located near the base of the filaments [ILLUSTRATION FOR FIGURE 3A OMITTED
7,820,442 was issued by the United States Patent and Trademark Office with claims broadly covering the use of SHM in prokaryotic cells to generate novel antibodies.
Humans consist of approximately 10% human cells and 90% prokaryotic cells, yet the idea of studying the varied relationships between eukaryotic hosts and prokaryotic symbionts is largely ignored in introductory biology classes.
This patent covers both methods and compositions for phenotypic analysis of eukaryotic as well as prokaryotic cells.
The earliest eukaryotes evolved from symbioses between different prokaryotic cells, according to Margulis and others.
Ten of the 11 texts give the earliest date for prokaryotic cells as 3.