Oswald Avery, Colin MacLeod and Maclyn McCarty used enzymes to purify biochemicals such as proteins, DNA and RNA from the heat-killed S cells

Question. Oswald Avery, Colin MacLeod and Maclyn McCarty used enzymes to purify biochemicals such as proteins, DNA and RNA from the heat-killed S cells to see which ones could transform live R cells into S cells in Griffith’s experiment. They observed that
A. Proteases and RNases affected transformation.
B. DNase inhibited transformation.
C. Proteases and Lipases affected transformation.
D. RNases inhibited transformation.

Answer: B. DNase inhibited transformation.

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