It is found that a certain enzyme is synthesized whenever the solution in which the cells are growing contains substance X. This phenomenon is most likely an example of _______ gene regulation.
A) positive
B) inducible
C) repressible
D) negative
E) positive-negative

Question

Quizplus · Accepted Answer

Inducible gene regulation refers to the synthesis of a gene product in response to a certain environmental signal or substrate. In this case, the presence of substance X is inducing the synthesis of the enzyme. Positive gene regulation refers to the enhancement of gene expression in response to a specific regulator molecule, while repressible gene regulation refers to the suppression of gene expression in response to a specific regulator molecule. Negative gene regulation refers to the inhibition of gene expression in response to a specific regulator molecule. Positive-negative gene regulation refers to the regulation of gene expression by both an activator molecule and a repressor molecule.

It Is Found That a Certain Enzyme Is Synthesized Whenever