micronucleus

mi·cro·nu·cle·us

M0275200 (mī′krō-no͞o′klē-əs, -nyo͞o′-)n. pl. mi·cro·nu·cle·i (-klē-ī′) or mi·cro·nu·cle·us·es The smaller of two nuclei in ciliate protozoans that contains genetic material and functions in reproduction.

mi′cro·nu′cle·ar adj.

micronucleus

(ˌmaɪkrəʊˈnjuːklɪəs) n, pl -clei (-klɪˌaɪ) or -cleuses (Zoology) the smaller of two nuclei in ciliated protozoans, involved in reproduction. Compare macronucleus

mi•cro•nu•cle•us

(ˌmaɪ kroʊˈnu kli əs, -ˈnyu-)

n., pl. -cle•i (-kliˌaɪ) the smaller of the two types of nuclei in ciliate protozoans, functioning in reproduction. [1890–95] mi`cro•nu′cle•ar, adj.

Translations

Micronucleus

micronucleus

[¦mī·krō′nü·klē·əs] (invertebrate zoology) The smaller, reproductive nucleus in multinucleate protozoans.

Micronucleus

in infusorians, the smaller (generative) nucleus. The micronucleus is usually diploid and divides by mitosis; however, during the sexual process in infusorians (conjugation), it divides meiotically and gives rise to sexual nuclei or pronuclei. During the vegetative period, the genetic apparatus of the micronucleus remains inactive, does not synthesize ribonucleic acid, and has no influence on the phenotype of the organism.

micronucleus

enUK

micronucleus

[mi″kro-noo´kle-us] 1. in ciliate protozoa, the kinetoplast, the smaller of two types of nucleus in each cell, which functions in sexual reproduction.2. a small nucleus.3. nucleolus.

mi·cro·nu·cle·us

(mī'krō-nū'klē-ŭs), 1. A small nucleus in a large cell, or the smaller nuclei in cells that have two or more such structures.
See also: macronucleus (2). 2. The smaller of the two nuclei in ciliates dividing mitotically and bearing specific inheritable material.
See also: macronucleus (2). Synonym(s): gametic nucleus, germ nucleus, gonad nucleus, karyogonad, reproductive nucleus

mi·cro·nu·cle·us

(mī'krō-nū'klē-ŭs) 1. A small nucleus in a large cell, or the smaller nuclei in cells that have two or more such structures. 2. The smaller of the two nuclei in ciliates dividing mitotically and bearing specific inheritable material.
See also: macronucleus (2)

micronucleus

the smaller of two nuclei found in some protozoans which is concerned with cell division. Compare MACRONUCLEUS.

单词	micronucleus
释义	micronucleus enUK mi·cro·nu·cle·us M0275200 (mī′krō-no͞o′klē-əs, -nyo͞o′-)n. pl. mi·cro·nu·cle·i (-klē-ī′) or mi·cro·nu·cle·us·es The smaller of two nuclei in ciliate protozoans that contains genetic material and functions in reproduction. mi′cro·nu′cle·ar adj. micronucleus (ˌmaɪkrəʊˈnjuːklɪəs) n, pl -clei (-klɪˌaɪ) or -cleuses (Zoology) the smaller of two nuclei in ciliated protozoans, involved in reproduction. Compare macronucleus mi•cro•nu•cle•us (ˌmaɪ kroʊˈnu kli əs, -ˈnyu-) n., pl. -cle•i (-kliˌaɪ) the smaller of the two types of nuclei in ciliate protozoans, functioning in reproduction. [1890–95] mi`cro•nu′cle•ar, adj. Translations Micronucleus enUK micronucleus [¦mī·krō′nü·klē·əs] (invertebrate zoology) The smaller, reproductive nucleus in multinucleate protozoans. Micronucleus in infusorians, the smaller (generative) nucleus. The micronucleus is usually diploid and divides by mitosis; however, during the sexual process in infusorians (conjugation), it divides meiotically and gives rise to sexual nuclei or pronuclei. During the vegetative period, the genetic apparatus of the micronucleus remains inactive, does not synthesize ribonucleic acid, and has no influence on the phenotype of the organism. micronucleus enUK micronucleus [mi″kro-noo´kle-us] 1. in ciliate protozoa, the kinetoplast, the smaller of two types of nucleus in each cell, which functions in sexual reproduction.2. a small nucleus.3. nucleolus. mi·cro·nu·cle·us (mī'krō-nū'klē-ŭs), 1. A small nucleus in a large cell, or the smaller nuclei in cells that have two or more such structures. See also: macronucleus (2). 2. The smaller of the two nuclei in ciliates dividing mitotically and bearing specific inheritable material. See also: macronucleus (2). Synonym(s): gametic nucleus, germ nucleus, gonad nucleus, karyogonad, reproductive nucleus mi·cro·nu·cle·us (mī'krō-nū'klē-ŭs) 1. A small nucleus in a large cell, or the smaller nuclei in cells that have two or more such structures. 2. The smaller of the two nuclei in ciliates dividing mitotically and bearing specific inheritable material. See also: macronucleus (2) micronucleus the smaller of two nuclei found in some protozoans which is concerned with cell division. Compare MACRONUCLEUS.
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