Penicillin, an antibiotic drug was discovered by__________________?
Correct answer: D. Alexander
- A. None of these
- B. Flaming
- C. Doctor Zhivago
- D. Alexander
Explanation
Penicillin was discovered by Alexander Fleming in 1928 when he observed that a mould inhibited bacterial growth. “Flaming” is a misspelling, while Alexander alone is the intended reference to Fleming.
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