Avery and his colleagues continued Griffith's research about DNA and their experiments lead to an almost irrefutable proof that DNA was the "transforming principle" that Griffith described in his famous experiments.
During this section, you will have to read some information about Avery's experiment and answer some questions related to it.
You can start reading the information of the following link:
khanacademy , in which there is a brief explanation of Avery's experiment and continue with sources 1 and 2.
