The “Griffith’s Experiment,” conducted in 1928 by English bacteriologist Frederick Griffith described the conversion of a non-pathogenic pneumococcal bacteria to a virulent strain. In this experiment, Griffith mixed the living non-virulent bacteria with a heat inactivated virulent form.

What did Griffith discover in his experiment?

Frederick Griffith, (born October 3, 1877, Eccleston, Lancashire, England—died 1941, London), British bacteriologist whose 1928 experiment with bacterium was the first to reveal the “transforming principle,” which led to the discovery that DNA acts as the carrier of genetic information.

What was Frederick Griffith trying to answer?

Frederick Griffith: Bacterial transformation. In 1928, British bacteriologist Frederick Griffith conducted a series of experiments using Streptococcus pneumoniae bacteria and mice. Griffith wasn’t trying to identify the genetic material, but rather, trying to develop a vaccine against pneumonia.