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macronucleus

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macronucleus /mac·ro·nu·cle·us/ (-noo´kle-us) the larger of two types of nuclei when more than one is present in a cell.
mac·ro·nu·cle·us (mkr-nkl-s)
n.
The larger of two nuclei present in ciliate protozoans, which controls the nonreproductive functions of the cell.
macro·nucle·ar adj.
macronucleus
[-no̅o̅′klē·əs]
Etymology: Gk, makros + L, nucleus, nut
1 a large nucleus that occupies a relatively large portion of the cell.
2 (in protozoa) the larger of two nuclei in each cell, governing cell metabolism and growth as opposed to the micronucleus, which functions in sexual reproduction.
macronucleus
the larger nucleus when there are two in the cell.
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15 [micro]m x 5 [micro]m) has a dense polymorphic macronucleus and normally occupies an intraluminal or intraepithelial location within the digestive gland in P.
Diseases of pearl oysters and other molluscs: a Western Australian ... by Creeper, J. / Journal of Shellfish Research
During most of a cell's existence, the micronucleus is inactive, and the macronucleus directs the business of making proteins.
They're sequencing a what? Genome scientists go out on a limb of the ... by Milius, Susan / Science News
[23] Finally, ciliocytophthoria are anucleate (Figures 1 through 3), whereas B coli have a macronucleus that is typically indented or kidney shaped (Figure 4).
Ciliocytophthoria in Clinical Virology by Hadziyannis, Emilio; Yen-Lieberman, Belinda; Hall, Gerri; Procop, Gary W. / Archives of Pathology & Laboratory Medicine
 
 
 
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