Suppose that a certain enzyme is synthesized whenever the solution in which the cells are growing lacks substance X.When substance X is present,the enzyme is produced only under certain environmental conditions.This phenomenon would most likely be an example of _______ gene regulation.
A) inducible
B) positive
C) negative
D) repressible
E) positive-negative

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The Answer of Suppose that a certain enzyme is synthesized whenever the solution in which the cells are growing lacks substance X.When substance X is present,the enzyme is produced only under certain environmental conditions.This phenomenon would most likely be an example of _______ gene regulation.
A) inducible
B) positive
C) negative
D) repressible
E) positive-negative

Suppose That a Certain Enzyme Is Synthesized Whenever the Solution