I Biomol Flashcards

(51 cards)

1
Q

Funcion del ARN mensajero

A

copia gen y lo trasporta al ribosma

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2
Q

El ARNm tiene…

A

codon y caperuza

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3
Q

ARN que no produce proteinas

A

ARN ribosomal

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4
Q

Funcion de ARNt

A

transporte y union de aminoacidos hacia ARNm

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5
Q

Que contiene ARNt

A

anticodon y aminoacidos

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6
Q

cuales enunciados forman parte de la expresion de genes

A

traduccion
transcrpcion
porceso postranscrpcional

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7
Q

No expresa genes

A

replicacion

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8
Q

se crean RNAm al mismo tiempo

A

verdadero

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9
Q

parejas de los sitios de traduccion

A

A-sitio de entrada de aminoacil RNAt
P-peptidil RNAt
E-exit salida de peptidil RNAt

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10
Q

funcion del RNAr

A

formacion de ribosomas

no forma proteinas

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11
Q

enlace petosa+BN

A

n-glucosidico=enlaces covalentes

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12
Q

enlace BN*pentosa+fosfato

A

ester

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13
Q

nucleotido+nucelotido

A

fosfodiester

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14
Q

bases nitrigenadas

A

Puente de hidrogeno

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15
Q

orden de compactacion del ADN

A
histonas 
nucleosoma 
centrosoma
30nm
300nm
700nm
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16
Q

composicion ribosomal

A

Subunidad 60S y 40S

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17
Q

La replicacion es…

A

bidericcional

semiconservadora

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18
Q

la sintesis del DNA es

A

bidereccional

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19
Q

la helicasa

A

rompe puentes de hidrogeno (bases-bases)

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20
Q

la topoisomerasa

A

corta y pega para liberar la tencion

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21
Q

La proteinas de union a cadena sencilla

A

evitan formacion de puentes de hidrogeno

22
Q

DNA POL ALPHA

23
Q

DNA POL DELTA

A

elongacion rezagada

24
Q

DNA POL EPSILON

A

elongacion lider

25
DNA POL BETA
reparacion de erorres
26
DNA POL GAMA
replicacion de DNA mitocondrial
27
enzima que une ragmentos de okazaki
ligasa
28
codones de paro
UAG UAA UGA
29
Codon de inicio
AUG
30
RNA POL 1
nucleo transcrito de 45S precursor RNAr (18s, 28s y 5.8s) TF1
31
RNA POL 2
nucleoplasma sintesitiza RNAm y RNAmi TF2
32
RNA POL 3
Nuceloplasma sintetiza RNAt y RNAr 5s TF3
33
Enzima que sintetiza aminocial RNAt
aminoacil RNAt sintetasa
34
iniciador del proceso de transcrpicion
caja TATA | rico en timina y adenina
35
secuencias regulatorias
promoteres potenciadores silencidores
36
secuencias codificantes
intrones: no codifican extrones: codifican
37
TFIID
Une la caja TATA al sito de union especifico TBP
38
TFIIA
estabilia la union TBP-TATA
39
TFIIB
Da instrucciones a la ARN pol II
40
TFIIF
Pegamento de ARNpoll
41
TFIIE
regula TFIIH
42
TFIIH
fosforila ARN pol
43
ley de chargaf
``` A = U-T C = G ```
44
subunidad menor compuesta
18S + 33 proteinas
45
subuniad mayor compuesta
5s, 5.8s y 28s
46
Transpcriptasa reversa que sintetiza una secuencia determinada de DNA
topoisomeras
47
El factor IF4 identifica
caperuza
48
que remueve escision de bases
1 sola base
49
Esicion de nucleotidos remueve
+20 nucleotidos
50
extremos 5´ en el ciclo de repliacion
se acortan
51
desoxiadenosina desoxitimina desoxicitosina desoxiguanina
nucleotidos