Multiple choice

Who discovered penicillin?

  1. Christian Barnard

  2. James Watson

  3. Francis Crick

  4. Alexander Fleming

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Alexander Fleming discovered penicillin in 1928 when he noticed that a mold contaminating a Petri dish of Staphylococcus bacteria had inhibited bacterial growth. This became the world's first widely used antibiotic.