Avery, MacLeod and McCarty (1944) showed the transforming principle was:
AAsh
BDNA
CRNA
DFat
Answer & Solution
Correct answer: B. DNA
1. They degraded each component in turn.
2. Only degrading DNA stopped transformation.
3. So DNA carried the information.
_Source: OpenStax Biology 2e, Chapter 14, DNA Structure and Function (CC BY 4.0)._
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