structure de l'ADN Flashcards

1
Q

what does ADN stand for?

A

acide desoxyribonucleique

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2
Q

simply explained what is the structure of ADN?

A

un polymère de nucléotide

4 bases: Guanine et Cytosine, Thymine et Adénine

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3
Q

structure d’un nucléotide?

A

base + sucre = just un nucléoside

base + sucre + phosphate= un nucléotide

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4
Q

draw the ADN and ARN sugar

A

see notion

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5
Q

quelles bases sont des purine et quelles sont des pyrimidine?

A

guanine et adénine= purine
thymine + Cytosine= pyrimidine

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6
Q

quelles liasons existe il dans l’ADN?

A

liasons osidique entre sucre et base

nucléotides sont reliés par des liasons phosphodiester (an atom = O and -OH
the 3’ OH group bonds to the first Phosphate of 3, causing the = O to move back, relasing two phosphates.

its easier of you draw it so see notion.

liasons entre les deux hélices:

liasons de hydrogen entre les bases, soit 3 (G&C) ou 2 (T&A)

liasons ionique: charge négatives des phosphate

liasons hydrophobes: empilement des bases
liasons de Van der Waals:

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