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General Knowledge Medium NTS Uploaded: 07 Aug 2026

Who is credited with discovering penicillin?

  • A Robert Koch
  • B Jonas Salk
  • C Louis Pasteur
  • D Alexander Fleming
Correct Answer: Option D — Alexander Fleming
Explanation:
Alexander Fleming discovered penicillin in 1928 when he noticed that a mold called Penicillium had killed surrounding bacteria in a petri dish, leading to the development of the first antibiotic.
Submitted by: PaperMCQs
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