nucleotidi Flashcards

1
Q

cosa sono i nucleotidi?

A

costituenti di DNA e RNA

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2
Q

costituito da cosa?

A

-una base azotata
-una molecola di zucchero pentoso
-un gruppo fosfato

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3
Q

zucchero pentoso posizione 2’

A

-RNA: OH (ribosio)
-DNA: H (desossiribosio)

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4
Q

basi azotate

A

-basi puriniche: 2 anelli
* adenina
* guanina
-basi pirimidiniche: 1 anello
* citosina
* timina (DNA)
* uracile (RNA)

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5
Q

nucleoside?

A

nucleotide senza grp fosfato

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6
Q

appaiamenti delle basi

A

A=T(DNA)
A=U(RNA)
G=_C

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7
Q

esempi

A

ATP e GTP

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