
12°C Ejercicio de Biología sobre ADN
Authored by Agustin Jimenez
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12th Grade
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15 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Las ADN polimerasas requieren un extremo 3'-OH libre proporcionado por un cebador para iniciar la síntesis.
C
F
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
La cadena líder (adelantada) se sintetiza de forma discontinua y necesita múltiples cebadores.
C
F
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
La topoisomerasa alivia la tensión torsional por delante de la horquilla de replicación.
C
F
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Una sustitución sinónima siempre cambia la secuencia de aminoácidos de la proteína.
C
F
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
El sistema de reparación de errores de apareamiento (mismatch repair) puede distinguir y corregir la hebra recién sintetizada.
C
F
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Cuál es la función principal de la topoisomerasa durante la replicación?
Romper y religar el ADN para aliviar el superenrollamiento
Separar las hebras de ADN
Mantener estables las hebras sencillas
Sellar los huecos entre fragmentos
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
En bacterias, ¿qué enzima elimina los cebadores de ARN y rellena esos espacios con ADN?
RNasa H
Primasa
Helicasa
ADN polimerasa I
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