Question

Penicillin is an antibiotic that was discovered in 1928. Today many species of bacteria have acquired resistance to penicillin. This adaptation occurred as a result of

Answer 1

THE ANSWER IS C ( genetic mutation) ON USATestPrep because...

Step-by-step explanation:

Many bacteria have acquired the ability to produce an enzyme called penicillinase, which destroys penicillin. All enzymes are proteins. The ability to produce the new protein penicillinase came from a change in the bacterial DNA: a genetic mutation.

Answer 2

Genetic mutation is the answer to your question