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NEETZoologyMolecular Basis of Inheritance

What makes DNA more stable than RNA?

Options

  1. APresence of uracil instead of thymine
  2. BRNA being a catalyst
  3. CDNA being double stranded and having complementary strand
  4. DRNA having a shorter life span

Correct answer

C. DNA being double stranded and having complementary strand

Step-by-step solution

If one examines each requirement one by one, because of the rule of base pairing and complementarity, both the nucleic acids (DNA and RNA) have the ability to direct their duplications. The other molecules in the living system, such as proteins fail to fulfill the first criteria itself. The genetic material should be stable enough not to change with different stages of life cycle, age or with change in physiology of the organism. Stability as one of the properties of genetic material was very evident in Griffith’s

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