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BALBIANI RING [1 record]

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Alphabetical list of terms

Record 1 2004-12-10

English

Subject field(s)
  • Genetics
  • Molecular Biology
DEF

A puffed section of a polytene chromosome, considered the site of RNA transcription.

OBS

Because the chromonemata may be spun laterally in a series of loops, it gives the appearance of a portion of a lampbrush chromosome.

French

Domaine(s)
  • Génétique
  • Biologie moléculaire
DEF

[Renflement sur] un chromosome polytène, caractérisé par sa grande taille et sa forme en anneau.

OBS

Le [renflement] correspond à la déspiralisation locale de l'ADN et est lié à une synthèse active d'ARN.

OBS

Ne pas confondre avec [le terme «renflement chromosomique»] puisque les anneaux de Balbiani ne sont qu'un type, extrême par les dimensions atteintes, des formations connues sous le nom anglais de «puffs».

OBS

Terme habituellement utilisé au pluriel.

Spanish

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