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Who discovered the first antibiotic 'penicillin'?
1. James Watson
2. Alexander Fleming
3. Francis Crick
4. Henry Moseley

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Correct Answer - Option 2 : Alexander Fleming

The correct answer is Alexander Fleming.

  • Alexander Fleming was a Scottish physician-scientist who discovered penicillin in 1928. 
  • Penicillin sometimes abbreviated PCN is an antibiotic, that is derived from Penicillium fungi, also known as Penicillium notatum.
  • Alexander Fleming won the Nobel Prize in Physiology or Medicine in 1945 for the discovery of penicillin and its curative effect in various infectious diseases.

  • James Watson and Francis Crick, in 1953 discovered the molecular structure of deoxyribonucleic acid (DNA), the substance that is the basis of heredity. 
  • Henery Moseley, in 1913 used self-built equipment to prove that every element's identity is uniquely determined by its atomic number. His discovery revealed the true basis of the periodic table. 

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