In 1928, Frederick Griffith, a bacteriologist, was trying to prepare a vaccine against pneumonia.
CHAPTER 12 DNA and RNA. 12-1: DNA How was DNA discovered? Fredrick Griffith Oswald Avery Hershey & Chase Watson & Crick.
DNA
Ch. 12 & 13
Chapter 12
By the early 1950’s, most scientists were convinced That genes were made of DNA. The problem is that no one knew what it looked like. Then along came.
