The blob operon produces enzymes that convert compound A into compound B. The operon is controlled by regulatory gene S. Normally, the enzymes encoded by the operon are synthesized only in the absence of compound B. If gene S is mutated, the enzymes are synthesized in the both the presence AND absence of compound B. Gene S must encode a(n):
a. inducer.
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Predators are the ones who consume the prey and rely on them as a food source, while prey rely on predators to control their population.
The location northward the Polaris climbs higher in the sky.