NEET 2023 · Class 12

Molecular Basis of Inheritance

With reference to Hershey and Chase experiments, select the correct statements. (A) Viruses grown in the presence of radioactive phosphorus contained radioactive DNA. (B) Viruses grown on radioactive sulphur contained radioactive proteins. (C) Viruses grown on radioactive phosphorus contained radioactive protein. (D) Viruses grown on radioactive sulphur contained radioactive DNA. (E) Viruses grown on radioactive protein contained radioactive DNA. Choose the most appropriate answer from the options given below:

  1. (A)(D) and (E) only
  2. (B)(A) and (B) only
  3. (C)(A) and (C) only
  4. (D)(B) and (D) only

The NCERT line that answers it

Concept-grounded

Viruses grown in the presence of radioactive phosphorus contained radioactive DNA but not radioactive protein because DNA contains phosphorus but protein does not.

Chapter
Molecular Basis of Inheritance
Section
5.2.1 The Genetic Material is DNA

The answer is taught in this NCERT section but is not one quotable sentence. It needs combining facts or applying the idea.

How this line gives the answer

Claim discrepancy: claimed A, GPT says B. Matched with override at hybrid rank 1.

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Question text is reproduced from the published NEET 2023 paper for study and commentary. NCERT text is quoted, not redistributed; textbooks remain at ncert.nic.in. Our mapping method, including its measured error rates, is published at /methodology.