ribosoma Flashcards

1
Q

unidad de mediad del coeficiente de sedimentación en ultracentrifugación

A

s, svedberg

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2
Q

transcrito primario de la sintesis de ribosomas

A

rRNA 45s

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3
Q

rRNA es modificado y cortado por en 18,5.8 y 28 por

A

snRNAs

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4
Q

subunidad menor (40s) formada por

A

18s + 33 proteínas

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5
Q

subunidad mayor (60s) formadoa por

A

5.8, 28s + RNA 5s + 49 prteínas

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6
Q

subunidad menor (40s) + subunida dmayor (60s) =

A

ribosoma funcional eukariotico (80s)

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7
Q

combinaciones posibles de ucléotidos

A

64

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8
Q

mRNA sale del núcloe por

A

una señal exportina

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9
Q

codón inical

A

aug

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10
Q

AUG codifica para

A

metionina

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11
Q

codon de paro

A

UAA UGA UAG

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12
Q

sitio donde compienza la traduccion

A

P

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13
Q

codones complementarios se unen al sitio

A

A

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14
Q

verifican que la proteína este bien plegada

A

chaperonas

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15
Q

factores de elongación

A

elF2 + GTP

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16
Q

cadena proteica se sintetiza en

A

extremo acrboxilo -> amino

17
Q

Cél. Con gran cantidad de ribosomas que presentan 1 núcleo lo toda su vida

A

Achinares del páncreas