Genetica 1st part Flashcards

1
Q

EXPRESIÓN A UN NIVEL
CONSTANTE : tienden a ser vitales
para las funciones básicas en la célula.
GENES que normalmente están

A

constiutivos

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2
Q

GENES que normalmente están
INACTIVOS pero que cuando esta el
sustrato se activa. Comu para enzimas
catabólicas.

A

Inducibles

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3
Q

GENES que normalmente están activos,
PERO SE SILENCIAN cuando el
producto es abundante. Común para
enzimas anabolicas

A

REPRESIBLES

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4
Q

La regulación de la expresión de genes
ocurre principalmente en la etapa de la

A

transcripción

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5
Q

es la
secuencia de ADN
donde se une la ARN
polimerasa para
iniciar la transcripción
de los genes del
operón

A

El promotor

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6
Q

es la
secuencia de ADN
donde se une el
represor para bloquear
la transcripción de los
genes del operón.

A

El operador

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7
Q

son los
que codifican las
enzimas o proteínas
necesarias para una
ruta metabólica o
función celular
específica.

A

Genes Estructurales

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8
Q

ocurre cuando un
activador transcripcional se une al promotor,
permitiendo que la ARN polimerasa inicie la
transcripción de los genes.

A

Regulación Positiva

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9
Q

ocurre cuando un
represor transcripcional se une al operador,
bloqueando la unión de la ARN polimerasa y
deteniendo la transcripción de los genes.

A

regulación negativa

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10
Q

Los co-represores e inductores son pequeñas
moléculas que se unen a los represores o
activadores, modificando su capacidad de unirse
al ADN y regular la transcripción.

A

Efectores

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11
Q

Ajuste de Actividad Enzimática

Regulación Génica

Adaptación al Entorno

A

Regulación del Metabolismo
Bacteriano

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12
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