TERMIUM Plus®

The Government of Canada’s terminology and linguistic data bank.

MACRONUCLEUS [3 records]

Record 1 2017-12-14

English

Subject field(s)
  • Cytology
  • Biotechnology
DEF

[Related] to or characterized by amitosis.

CONT

Tetrahymena is a single-celled ciliated eukaryote with two nuclei, the macronucleus and the micronucleus. The macronucleus is a large, polyploid nucleus that simply pinches itself off in an amitotic division.

French

Domaine(s)
  • Cytologie
  • Biotechnologie
CONT

L'œsophage, exposé au dommage mécanique causé par l'ingestion de bois haché, est capable de se régénérer rapidement par un processus de division cellulaire simplifié, dit amitotique, qu'on n'a pas l'habitude d'observer dans les tissus des métazoaires où la mitose est de règle.

Spanish

Campo(s) temático(s)
  • Citología
  • Biotecnología
Save record 1

Record 2 2012-01-05

English

Subject field(s)
  • Molecular Biology
DEF

A smaller nucleus located close to and lying partly within a depression on the oral side of the macronucleus.

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.

French

Domaine(s)
  • Biologie moléculaire
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.

Spanish

Campo(s) temático(s)
  • Biología molecular
DEF

Núcleo distinto y menor que el núcleo principal de una misma célula.

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.

Save record 2

Record 3 2003-01-30

English

Subject field(s)
  • Cytology

French

Domaine(s)
  • Cytologie

Spanish

Campo(s) temático(s)
  • Citología
Save record 3

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