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viva [34]
3 years ago
8

Cantidad de puentes de hidrógenos formados entre la Guanina y Citosina que permite el cierre de las cadenas del ADN

Biology
1 answer:
weeeeeb [17]3 years ago
3 0

Answer:

tres puentes de hidrógeno

Explanation:

El acido desoxirribonucleico (ADN) es una molécula compuesta por dos hélices antiparalelas las cuales interaccionan entre sí a través de puentes de hidrógeno entre bases nitrogenadas. Existen dos clases de bases nitrogenadas: 1-purinas (Guaninas y Adeninas) y 2-pirimidinas (Timina y Citosina). En la doble hélice, la Adenina (A) siempre aparea con Timina (T) a través de dos puentes de hidrógeno, mientras que la Citosina (C) siempre interactúa con Guanina (G) a través de tres puentes de hidrógeno, es decir un enlace de hidrógeno más por cada par de bases. Es por esta razón que una molécula de ADN con alto contenido GC es más estable y por lo tanto tiene una temperatura de desnaturalización mayor.

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