acide nucléiques ppt 2.1 Flashcards

1
Q

cest quoi une acide nucleotique

A

composé de nucleotide

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2
Q

un nuceotide est former a partir de quelle 3 substances

A

une base purique ou pyrimidique
un sucre
un acide phosphorique

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3
Q

base complementaire ADN

A

A-T
C-G

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4
Q

base complementaire ARN

A

A-U
C-G

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5
Q

extremité 5’ contient quel groupement

A

groupement phosphate

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6
Q

extremité 3’ contient quel groupement

A

groupement hydroxyle(OH)

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7
Q

la synthese se deroule de quelle extremiter a quelle extremiter

A

5’ vers 3’

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8
Q

la sequence dacides aminés secrit de:

A

gauche a droit donc 5’ vers 3’

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9
Q

brin sens

A

5’ vers 3’

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10
Q

brin anti-sens

A

3’ vers 5’

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11
Q

A-T combien de liaisons hydrogene

A

2

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12
Q

G-C combien de liaisons hydrogene

A

3

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13
Q

A-U combien de liaisons hydrogene

A

2

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14
Q

pourquoi les brins sont dit antiparalleles

A

un brin va dans le sens 5’ vers 3’ et lautre dans le sens 3’ vers 5’

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