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Synthèse Protéines Mutations > ARN > Flashcards

ARN Flashcards

1
Q

Monomères ARN…

A

Nucléotides

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2
Q

ARN formé…

A

Une chaîne nucléotides

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3
Q

Contrairement ADN, ARN peut…

A

Sortir noyau et rendre aux ribosomes.

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4
Q

ARN situé

A

Noyau

Cytoplasme

Ribosomes

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5
Q

ARN composé…

A

Groupement phosphate

Sucre. Ribose

Base azoté

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6
Q

Purines ARN

A

Adenine

Guanine

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7
Q

Pyrimidines ARN

A

Cytosine

Uracile

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8
Q

Types ARN

A

ARNm~ messager

ARNt~ transfert

ARNr~ ribosomiques

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9
Q

ARN messager

A

Copie du code génétique ADN

Transmet message du noyau au cytoplasme jusqu’aux ribosomes.

Séquence trois bases azotés= «codon».

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10
Q

ARN transfert

A

Forme de triple boucle située ds cytoplasme.

Une extrémité, anticodon, autre extrémité acide aminé.

Séquence trois bases azotés=«anticodon». (Complémentaire au codon).

Apporte aux ribosomes acides aminés qui seront ajoutés à protéines en formation.

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11
Q

ARN ribosomiques

A

Entre ds composition ribosomes.

Participe a fixation de ARNm.

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Synthèse Protéines Mutations (5 decks)

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