Replicación Flashcards

1
Q

en que dirección es la síntesis de cadenas de DNA

A

5 a 3

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2
Q

3 características

A

semiconservadora
bidireccional
continua y discontinua

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3
Q

origen de la replicacion

A

eucariote y procariotes

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4
Q

eucariote

A

multifocal

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5
Q

procariote

A

monofocal

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6
Q

continua

A

5 a 3 prima

hebra lider

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7
Q

discontinua

A

3 a 5 prima

fragmentos cortos de Okazaki

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8
Q

Helicasa

A

separa hebras de DNA

rompe puentes de hidrogeno

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9
Q

proteinas de union a cadena sencilla (RPA o SSB)

A

evita formación de puentes de hidrogeno

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10
Q

Primasa

A

sintetiza primers

proporciona el extremo 3

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11
Q

Topoisomerasa

A

cortan y forman enlaces fosfodiester

deshace super enrolamiento

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12
Q

Rnasa H1

A

retira primers

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13
Q

endonucleasa flap 1

A

remueve los fragmentos de okasaki

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14
Q

ligasa

A

enlace fosfodiester entre nucleotidos contiguos

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15
Q

DNA pol Alpha

A

primasa primers

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16
Q

DNA pol D

A

elongación de hebras de DNA

rezagada

17
Q

DNA pol E

A

elongación de hebras de DNA

18
Q

DNA pol B

A

reparación de errores