La replication Flashcards

1
Q

l’ADN polymerase Beta

A

reparation de l’adn

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2
Q

ADN polymerase londa

A

replication de ADN mitochondriale

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3
Q

la chromatine

A

est l’association de ADN+ARN+proteine histone et proteine non histone

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4
Q

la durée du cycle cellulaire

A

30 heures

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5
Q

dans quelle phase du cycle cellulaire la transcription est impossible

A

La phase S

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6
Q

ADN polymerase alpha

A

associe a la primase synthétise les amores

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7
Q

ADN polymerase delta

A

principale enzyme de replication

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8
Q

L’instabilité génétique cause quoi

A

cause des tumeurs .elle se produit pendant la phase S en affectant le replisome

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9
Q

la replication deregule

A
cancer 
cela est du a 
structure secondaire de l'ADN 
complexe d'ADN protéine 
Modification de la chromatine 
Lesion de l'ADN
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10
Q

helicase

A

se charge de despiraliser et séparer les deux brins d’ADN par cassure des liaisons d’hydrogène

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11
Q

Les amorces d’ARN

A

10 nucleotides

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12
Q

les amorces d’ADN 2

A

20 nucleotides

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13
Q

les fragment d’OKAZAKI

A

environ 200 sont liées par le ligase

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14
Q

quel brin a la plus complexe synthèse

A

le brin retarde

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15
Q

Les ADN polymerases on une fonction exonuclease

A

en cas de mesaparimment

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16
Q

les ADN polymerase demarrent la polymerisation sur

A

le OH libre de ribose du dernier nucleotide d’une amorce