
Flashcard-Replicación del ADN
Flashcard
•
Biology
•
7th Grade
•
Practice Problem
•
Hard
Prof. Leiva
FREE Resource
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42 questions
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1.
FLASHCARD QUESTION
Front
¿Cuáles son las tres hipótesis del mecanismo de replicación del ADN?
Back
1. Conservativa: una hélice vieja y una nueva. 2. Semiconservativa: una hebra vieja y una nueva en cada hélice. 3. Dispersiva: hebras con partes viejas y nuevas.
2.
FLASHCARD QUESTION
Front
¿Qué confirma el experimento de Meselson y Stahl?
Back
Confirma el modelo de replicación semiconservativa al mostrar que el ADN nuevo tiene una cadena vieja y una nueva.
3.
FLASHCARD QUESTION
Front
¿Qué es la horquilla de replicación?
Back
Es la estructura en forma de Y que se forma cuando el ADN se separa en el origen de replicación.
4.
FLASHCARD QUESTION
Front
¿Qué enzimas desenrollan el ADN durante la replicación?
Back
La topoisomerasa y la helicasa.
5.
FLASHCARD QUESTION
Front
¿Qué son los fragmentos de Okazaki?
Back
Son pequeños tramos de ADN que se sintetizan de manera discontinua en la cadena rezagada.
6.
FLASHCARD QUESTION
Front
¿Qué hace la ADN-polimerasa?
Back
Sintetiza nuevas cadenas de ADN a partir de un cebador y corrige errores.
7.
FLASHCARD QUESTION
Front
¿Cómo se corrigen los errores en la síntesis de ADN?
Back
La ADN polimerasa III retrocede y elimina nucleótidos incorrectos.
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