Who invented penicillin?

ALouis Pasteur

BAlexander Fleming

CRobert Koch

DJoseph Lister

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Correct Answer: B: Alexander Fleming

Explanation: The correct answer is B: Alexander Fleming. Alexander Fleming discovered penicillin, the world's first antibiotic, in 1928. He noticed that a mold called Penicillium notatum had killed bacteria in a petri dish, leading to a medical revolution.

Who invented penicillin?

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