TERMIUM Plus®

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

MAP CHROMOSOMES [6 records]

Record 1 2014-04-14

English

Subject field(s)
  • Genetics
CONT

The transduction of two genes by one phage into the same recipient cell is called cotransduction. Cotransduction frequencies can be used for fine mapping of genes. The cotransduction of markers on opposite ends of the map derived from conjugation is part of the evidence that most bacterial chromosomes are actually circular.

French

Domaine(s)
  • Génétique
DEF

Transduction impliquant plus d'un gène. On peut alors penser que ces gènes sont fort proches l'un de l'autre. La mise en évidence de l'existence de pareilles associations de gènes permet de construire des cartes génétiques bactériennes.

Spanish

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Record 2 2011-10-31

English

Subject field(s)
  • Biotechnology
DEF

Map depicting the order and distance between sites at which restriction enzymes cleave chromosomes.

French

Domaine(s)
  • Biotechnologie
OBS

macrorestriction : ex: La technique de la macrorestriction après électrophorèse en champ pulsé a permis de soupçonner l'existence de nouveaux sérovars [...]

Spanish

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Record 3 2010-08-11

English

Subject field(s)
  • Biotechnology
CONT

The molar fractions of guanine plus cytosine(GC) in DNA were determined for 36 yeast artificial chromosomes(YACs) which almost completely cover human chromosome band Xq28, a terminal reverse band, corresponding to about 8 Mb of DNA. This allowed the construction of the most complete compositional map to date of a chromosomal band...

OBS

Proceedings of the National Academy of Sciences, Volume 93, Number 03; Pages: 1298-1302

French

Domaine(s)
  • Biotechnologie
CONT

Les chromosomes métaphasiques humains présentent divers types de bandes selon le traitement auquel ils sont soumis (colorants, température, enzymes protéolytiques ou DNases). Les bandes G(iemsa) positives représentent environ 50 % des bandes chromosomiques, l'autre moitié étant constituée de bandes G(iemsa) négatives. Ces dernières ne sont que les bandes R(everse) obtenues par dénaturation thermique.

OBS

Elles sont obtenues par dénaturation thermique en solution saline, spécifiques des régions riches en guanine et en cytosine ainsi qu'en gènes de synthèse précoces.

Spanish

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Record 4 2001-02-23

English

Subject field(s)
  • Biotechnology
  • Genetics
CONT

Different types of physical maps vary in their degree of resolution. The lowest-resolution physical map is the chromosomal(sometimes called cytogenetic) map, which is based on the distinctive banding patterns observed by light microscopy of stained chromosomes.

French

Domaine(s)
  • Biotechnologie
  • Génétique

Spanish

Save record 4

Record 5 1997-09-08

English

Subject field(s)
  • Botany
  • Plant Breeding
  • Genetics
CONT

Chromosome 5B of bread wheat is known to carry two major genes giving rise to genetic disorders. Nel for hybrid necrosis and Vg for winter variegation. Additionally, in many european winter wheat varieties this chromosome is represented in a translocated form, with 5BL-7BL, 5BL-7BS chromosomes rather than the normal 5B and 7B forms of the standard variety Chinese Spring. Genetic analysis has been carried out to map these genes and the translocation break point, and to investigate their pleiotropic effects or those of linked quantitative trait loci(qtl) for economically important characters... from an abstract found on Dialog.

OBS

"Standard" referring to a product that conforms to an established specification or standard.

French

Domaine(s)
  • Botanique
  • Amélioration végétale
  • Génétique
CONT

Caractéristiques qualitatives et quantitatives de 5 lignées hybrides et de la variété standard. Sept carotenoïdes ont été isolés et caractérisés. Toutes les variétés étudiées et leurs hybrides se rattachent, par la composition de leurs pigments, à des types génétiques déterminés. [Dialog].

OBS

Sélection variétale.

OBS

Les variétés (varietas) qui résultent d'une transformation naturelle à ne pas confondre avec les variétés obtenues par la sélection horticole, généralement désignées sous le nom de cultivars.

Spanish

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Record 6 1996-08-14

English

Subject field(s)
  • Biotechnology
CONT

In a chromosomal map, genes or other identifiable DNA fragments are assigned to their respective chromosomes, with distances measured in base pairs. These markers can be physically associated with particular bands(identified by cytogenetic staining) primarily by in situ hybridization, a technique that involves tagging the DNA marker with an observable label(e. g.) one that fluorescesces or is radioactive). The location of the labeled probe can be detected after its binds to its complementary DNA strand in an intact chromosome.

French

Domaine(s)
  • Biotechnologie
DEF

Représentation de points de repères cytologiques d'un chromosome, reliés à des loci connus par des mutations et leur position sur une carte génétique.

OBS

Définition tirée d'un vocabulaire dans INTERNET.

Spanish

Save record 6

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