macronucleus
larger nucleus of certain protozoans, as distinguished from the smaller micronucleus
Source: Noland, George B. 1983. General Biology, 11th Edition. St. Louis, MO. C. V. Mosby ...
macronucleus In ciliates, the large nucleus that carries up to several hundred copies of the genome and controls metabolism and asexual reproduction. PICTURE ...
macronucleus
The larger of two nuclei found in some Protozoans and concerned with cell division. It appears to have mainly vegetative functions.
madreporite
The porous opening to the hydrocele in echinoderms.
macronucleus The larger of the two kinds of nuclei in ciliate protozoa; controls all cell functions except reproduction.
Macronucleus Macrophage Macrophage colony-stimulating factor (M-CSF) MADmitotic arrest defective Mad cow disease Magnetic resonance imaging (MRI) Magnetoencephalography (MEG) Magnetoreceptors Magnetotaxis Major histocompatibility ...
Ciliates possess two types of nuclei---a large macronucleus and one or more small micronuclei. The macronucleus controls the normal metabolism of the cell.
 See also: Nucleus, Micronucleus, Trans, Organ, Mitosis
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