Answer:
Allosteric inhibition can be reversed.
The allosteric inhibitor binds to a site distinct from the active site resulting in decreased affinity of the enzyme for the substrate.
Allosteric inhibition can be irreversible
<span> Analyze what could have happened, and change the experimental methods to retest the hypotheses in a different way.. </span>
I'm not sure but but i think the answer will be:
A. additive genetic variance times the selection differential.