TERMIUM Plus^®

Record 1,  Textual support,  English

Record number: 1, Textual support number: 1 DEF

A smaller nucleus located close to and lying partly within a depression on the oral side of the macronucleus.  3, record 1, English, - micronucleus

Record number: 1, Textual support number: 1 CONT

A micronucleus(MN) is formed during the metaphase/anaphase transition of mitosis(cell division). It may arise from a whole lagging chromosome(aneugenic event leading to chromosome loss) or an acentric chromosome fragment detaching from a chromosome after breakage(clastogenic event) which do not integrate in the daughter nuclei.  2, record 1, English, - micronucleus

Record 1,  Textual support,  French

Record number: 1, Textual support number: 1 DEF

Petit noyau, présent en plus du noyau principal des cellules et séparé de celui-ci, produit pendant la télophase de la mitose (méiose) par des chromosomes ou des fragments de chromosomes retardataires.  1, record 1, French, - micronoyau

Record 1,  Textual support,  Spanish

Record number: 1, Textual support number: 1 DEF

Núcleo distinto y menor que el núcleo principal de una misma célula.  1, record 1, Spanish, - micron%C3%BAcleo

Record number: 1, Textual support number: 1 OBS

Normalmente se forma en telofases anómalas, tanto meióticas como mitóticas, donde los cromosomas individuales o sus fragmentos no alcanzan el polo del huso acromático.  1, record 1, Spanish, - micron%C3%BAcleo

Record 2,  Textual support,  English

Record number: 2, Textual support number: 1 DEF

A broken-off piece of a chromosome that lacks centromere and therefore its distribution to the poles during nuclear divisions is random and commonly it is lost.  1, record 2, English, - acentric%20fragment

Record number: 2, Textual support number: 1 OBS

Acentric fragments are frequent consequences of irradiation of cells with X rays and other ionizing radiations. Chromosomal inversions may generate bridges (shown between the two poles) and three acentric chromosome fragments of substantial size that are drifting in the middle of the cell and are not distributed to the poles.  1, record 2, English, - acentric%20fragment

Record 2,  Textual support,  French

Record number: 2, Textual support number: 1 CONT

Le fragment acentrique ne se déplace pas au cours de l'anaphase puisqu'il ne possède pas de point d'attache et ne peut donc s'ancrer à l'une des fibres du fuseau; il se perd dans le cytoplasme après la formation de la nouvelle enveloppe nucléaire. Dans les deux chromosomes recombinés, il y ainsi des délétions et aussi de temps en temps, des duplications et par conséquent, les zygotes qui en résultent ne sont pas viables.  1, record 2, French, - fragment%20acentrique

Record 2,  Textual support,  Spanish

Record 3,  Textual support,  English

Record number: 3, Textual support number: 1 DEF

A deletion resulting in the formation of an acentric and a centric fragment of chromosome.  1, record 3, English, - terminal%20deletion

Record number: 3, Textual support number: 1 CONT

(Autosomal structural rearrangements). A good example of this is the deleted B group chromosome resulting in the cri du chat. This could arise by at least four different mechanisms which are terminal deletion, interstitial deletion, translocation, and unequal chromatid intrachange, and there are at least eight families in which the mechanism has been shown to be a reciprocal translocation.  1, record 3, English, - terminal%20deletion

Record 3,  Textual support,  French

Record number: 3, Textual support number: 1 DEF

Délétion aboutissant à la formation d'un fragment acentrique et d'un fragment centrique de chromosome.  1, record 3, French, - d%C3%A9l%C3%A9tion%20terminale

Record number: 3, Textual support number: 1 CONT

(Modifications intra-chromosomiques). Il arrive qu'après une cassure, un fragment de chromosome soit éliminé, il en résulte un raccourcissement d'un bras chromosomique. Cette délétion peut être terminale ou intercalaire.  1, record 3, French, - d%C3%A9l%C3%A9tion%20terminale

Record 3,  Textual support,  Spanish