TERMIUM Plus®

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NUCLEINIC ACID [1 record]

Record 1 2011-07-08

English

Subject field(s)
  • Biochemistry
  • Molecular Biology
CONT

A component of the utmost biological importance in all organisms. It exists either as the two macromolecules deoxyribonucleic acid (DNA) or ribonucleic acid (RNA). Normally, all living organisms have both; some viruses however, have just one or the other.

CONT

They are found in all living cells and contain the information (genetic code) for the transfer of genetic information from one generation to the next, as well as for the expression of this information through protein synthesis.

French

Domaine(s)
  • Biochimie
  • Biologie moléculaire
CONT

Macromolécule monocaténaire constituée de monomères, les ribonucléotides contenant un sucre [,] le ribose, de l'acide phosphorique et les bases azotées cytosine, guanine, adénine et uracile. On peut y déceler d'autres bases azotées.

OBS

Acide nucléinique : Synonyme désuet.

OBS

On en distingue deux sortes suivant la nature du sucre qui les compose : l'ADN, acide désoxyribonucléique et l'ARN, acide ribonucléique.

Spanish

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

Biopolímero cuyas unidades constituyentes, denominadas nucleótidos, están formadas por una base nitrogenada, pentosa y ácido fosfórico.

OBS

Existen dos tipos de ácidos nucleicos: el Desoxirribonucleico o ADN y el Ribonucleico o ARN. DNA y RNA por sus siglas en inglés. El ADN se encuentra principalmente en el núcleo de la célula y el ARN en el citoplasma celular. Cada cadena de ácido nucleico contiene un azúcar, un grupo fosfatado y una de las cuatro bases siguientes: adenina, guanina, citosina o timina, que en el ARN es uracilo. El ARN varía en el azúcar y la timina.

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