Question

Avery and his colleagues eventually demonstrated that Griffith's transforming principle was

a)RNA.
b)DNA.
c)lipid.
d)protein.
e)carbohydrate.

Answer 1

Scientists Oswald Avery, Colin MacLeod, and Maclyn McCarty isolated the proteins and nucleic acids from the S strain of bacteria and found that only DNA was able to transform the R strain of bacteria, proving it to be the transforming principle.

Step-by-step explanation:

Scientists Oswald Avery, Colin MacLeod, and Maclyn McCarty conducted experiments to determine the transforming principle described by Griffith. They isolated the proteins and nucleic acids, namely RNA and DNA, from the S strain of bacteria. By degrading each component and testing their ability to transform the R strain of bacteria, they found that only when DNA was degraded, the mixture was no longer able to transform, concluding that DNA was the transforming principle.