Estructura del arn Flashcards

1
Q

cuales son los tres tipos de RNA:

A

RNAm
RNAt
RNAr

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2
Q

En que proporcion se encuentran dividido los RNA:

A

RNAm (2%)
RNAt (16%)
RNAr (82%)

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3
Q

Menciona algunas caracteristicas del RNAm:

A

Tamaño variable

vida media corta

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4
Q

Funcion de la RNAm:

A

transporte la cromatina al sitio de la sintesis proteica.

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5
Q

Funcion de la RNAt:

A

transporte de aminoacidos para la sintesis de polipeptidos o proteinas.

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6
Q

Funcion de la RNAr:

A

se asocia a proteinas formando los ribosomas.

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7
Q

Cuales son las bases modificadas que posee el RNAt:

A
pseudouridina
dihidrouridina
ribotimidina
4 thirouridina
3 metiltidina
n-acetildilato
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8
Q

Cuales son los 4 brazos que posee el RNAt:

A

asa TYC
asa anticodon
asa variable
Asa DHU

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9
Q

De que tamaño es el RNAt:

A

70-90 nucleotidos

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10
Q

Es el sitio del RNAt al cual se unen los codones mensajeros al momento de la sintesis proteica:

A

Asa anticodon

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11
Q

Este tipo de RNA posee bases metiladas:

A

RNAr

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