The tryptophan operon is a repressible operon that is A) permanently turned on.

Author Question: The tryptophan operon is a repressible operon that is A) permanently turned on. (Read 960 times)

aero

Hero Member
Posts: 512

on: Jun 29, 2013

The tryptophan operon is a repressible operon that is
A) permanently turned on.
B) turned on only when tryptophan is present in the growth medium.
C) turned off only when glucose is present in the growth medium.
D) turned on only when glucose is present in the growth medium.
E) turned off whenever tryptophan is added to the growth medium.

Hawke

Hero Member
Posts: 679

Reply #1 on: Jul 1, 2013

I'd go with E. It makes sense.

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aero

Hero Member
Posts: 512

Reply #2 on: Jul 23, 2013

Perfect!! It was right lol

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