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Molecular Basis of Inheritance — BIOLOGY STD 12 Science — Question

Maharashtra BoardEnglish MediumSTD 12 ScienceBIOLOGYMolecular Basis of Inheritance2 Marks
Question
Why RNA is not a suitable genetic material in comparison with DNA? Explain.
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Answer

  1. RNA functions as an enzyme and is therefore reactive and unstable.
  2. Uracil present in the RNA is less stable as compared to thymine of DNA.
  3. Being unstable RNA mutates at a much faster rate, that is why RNA viruses have shorter life span and mutate and evolve very fast. Such rapid changes are harmful to higher forms of life.

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