NEET 2017 · BiologyPrevious Year Question
The final proof for DNA as the genetic material came from the experiments of
Answer: (B) Hershey and Chase. Answer: (B) Hershey and Chase.
- A.Griffith
- B.Hershey and Chase✓
- C.Avery, Mcleod and McCarty
- D.Hargobind Khorana
Correct Answer
(B) Hershey and Chase
Solution & Explanation
Answer: (B) Hershey and Chase. Solution: Griffith showed transformation and Avery, MacLeod & McCarty identified DNA as the transforming principle, but the unequivocal (final) proof that DNA is the genetic material came from Hershey and Chase's bacteriophage experiment (1952). NCERT Ch 5, p.85, lines 29-30: "The unequivocal proof that DNA is the genetic material came from the experiments of Alfred Hershey and Martha Chase (1952)."
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