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Advanced Genetics 2

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inducible

-

.

TYPES OF OPERON

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LAC OPERON

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/

Lac T Glut pr-m-ter.pe#

Little Tryptophan

crowd lots tryptophaṅ

Lack Glut ##r none

Lacd Glad none

TRYPTOPHAN OPERON

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always off :

always on ,

repressible

t.pe#r Make

¥# aoems.n.at

Evatt Pressor)

/

- -

✓ a. glucose vi. lactose ✓ tryptophan exist .

X B glucose Xp lactose X tryptophan does not exist

Attenuation : the process of

stopping transcription from completion

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