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MEIOTIQUE [7 records]

Record 1 2012-05-22

English

Subject field(s)
  • Genetics
DEF

The separation of parental chromosomes at meiosis and dissociation of paternal and maternal characters ...

French

Domaine(s)
  • Génétique
DEF

Séparation de gènes ou de chromosomes d'origine paternelle et maternelle lors de la méiose. [Définition normalisée par l'AFNOR et reproduite avec son autorisation.]

OBS

Ce terme s'applique également à la perte d'un plasmide instable dans une cellule hôte. [Observation reproduite avec l'autorisation de l'AFNOR.]

OBS

ségrégation : terme normalisé par l'AFNOR.

Spanish

Campo(s) temático(s)
  • Genética
Save record 1

Record 2 2012-02-01

English

Subject field(s)
  • Biotechnology
CONT

During the normal production of sperm and egg cells, DNA strands occasionally break and rejoin in different places on the same chromosome or on the other copy of the same chromosome (i.e., the homologous chromosome). This process (called meiotic recombination) can result in the separation of two markers orginally on the same chromosome.

CONT

A genetic linkage map shows the relative locations of specific DNA markers along the chromosome. Any inherited physical or molecular characteristic that differs among individuals and is easily detectable in the laboratory is a potential genetic marker.

French

Domaine(s)
  • Biotechnologie
CONT

Nos travaux concernent l'étude des sites d'initiation et la caractérisation des lésions initiatrices. Il s'agit de cassures double-brin de l'ADN (CDBs) dont la réparation sur le chromosome homologue conduit à la recombinaison méiotique, qui est une étape nécessaire à la ségrégation réductionnelle des chromosomes homologues lors de la 1ère division de méiose.

Spanish

Save record 2

Record 3 2003-04-30

English

Subject field(s)
  • Genetics
DEF

A nuclear division in which daughter chromosomes separate from each other, as in ordinary somatic cell division.

OBS

In classical descriptions, based on the number of chromosomes distinguishable with the use of a microscope, a first reductional meiotic division and a second equational one are referred to. On the contrary, in more recent and more current descriptions based on the quantitative analysis of DNA the first division is the so called equational division (2N-2N) and the second division is the so called reductional one (2N-N).

French

Domaine(s)
  • Génétique
DEF

Toute division cellulaire qui conduit à la formation de 2 cellules filles ayant le même nombre de chromosomes que la cellule mère.

CONT

La deuxième division méiotique dite équationnelle permet à l'oocyte ou spermatocyte de deuxième ordre de répartir ses n chromosomes devenus 2n chromosomes entre ses 2 cellules filles.

Spanish

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

Record 4 2003-02-07

English

Subject field(s)
  • Genetics

French

Domaine(s)
  • Génétique

Spanish

Campo(s) temático(s)
  • Genética
Save record 4

Record 5 2003-01-30

English

Subject field(s)
  • Genetics

French

Domaine(s)
  • Génétique

Spanish

Campo(s) temático(s)
  • Genética
Save record 5

Record 6 1992-01-27

English

Subject field(s)
  • Genetics

French

Domaine(s)
  • Génétique

Spanish

Save record 6

Record 7 1976-06-19

English

Subject field(s)
  • Embryology

French

Domaine(s)
  • Embryologie

Spanish

Save record 7

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