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BIO NMDCAT Structure of DNA
nmdcat.online July 3, 2026

65. The historical experiment by Hershey and Chase utilizing radioactive isotopes 32P and 35S demonstrated conclusively that the genetic material of bacteriophages is

A. Protein
B. DNA
✓
C. RNA
D. Carbohydrate

📝 Explanation

By showing that viral DNA (32P) enters the host cell while viral protein (35S) stays outside, they proved DNA is the hereditary material.

📖 Additional Information

  • Protein
  • DNA
  • RNA
  • Carbohydrate

By showing that viral DNA (32P) enters the host cell while viral protein (35S) stays outside, they proved DNA is the hereditary material.

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64. The sequence of a coding strand of DNA is written as 5'-ATGCAA-3'. The sequence of the matching template strand of this DNA segment must be

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