jan 1, 1944 - Oswald Avery, Maclyn McCarty, Colin MacLeod
Description:
These three scientists determined that it was DNA that changed the characteristics of cells, not proteins. They discovered this by studying a type of bacteria that causes pneumonia (the same type that Frederick Griffith studied) Unlike Griffith, they were able to prove that DNA was the transforming principle.Added to timeline:
Date:
jan 1, 1944
Now
~ 82 years ago