ESTRUCTURA DEL GENOMA Flashcards

1
Q

Que constituye el genoma

A

todos los genes e intergenes de un individuo

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2
Q

Como se denomina el DNA que no codifica proteinas

A

DNA satelite

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3
Q

Donde se inicia la replicación de los cromosomas

A

en el centromero

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4
Q

% que representa al DNA satelite

A

50%

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5
Q

Partes codificantes de un gen

A

exones

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6
Q

Distribución funcional del genoma activo

A

-traducción de señales
-funciones generales
-mantenimiento del genoma
-otras actividades

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7
Q

Como ocurren las enfermedades por repetición de trinucleotidos

A

una secuencia se repite una cantidad mayor a la normal

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8
Q

Estructura del nucleosoma

A

8 Histonas, DNA y DNA linker

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9
Q

Tipos de histonas

A

H1, H2A, H2B, H3, H4

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10
Q

Estructura que se forma al compactar los nucleosomas

A

fibra de 30 nm

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11
Q

la roseta se forma por

A

6 loops de fibra de 30nm

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12
Q

la cromatida está formado por

A

30 rosetas

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13
Q

Efectos epigeneticos

A

no se cambia la secuencia del DNA pero si su expresión

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