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Author Question: The tryptophan operon is a repressible operon that is A) permanently turned on. (Read 1001 times)

aero

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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

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Reply #1 on: Jul 1, 2013
I'd go with E. It makes sense.


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aero

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Reply #2 on: Jul 23, 2013
Perfect!! It was right lol


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