Unequivocal proof that DNA is the genetic material was first proposed by
- Alfred Hershey and Martha Chase
- Avery, MacLeod and McCarty
- Wilkins and Franklin
- Frederick Griffith
Answer
(1) Alfred Hershey and Martha Chase
Solution
Griffith showed transformation; Avery, MacLeod and McCarty suggested the transforming principle was DNA, but not all biologists were convinced.
The unequivocal proof that DNA is the genetic material came from the experiments of Alfred Hershey and Martha Chase (1952) with bacteriophages.
Answer: (1)