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NTA Abhyas NEET2020ChemistryBiomoleculesPractice

Which one of the following pairs is not correctly matched?

Options

  1. ARecombinant DNA - DNA formed by the joining of segments of DNA from different sources
  2. BPurine - Nitrogenous bases Cytosine, thymine and uracil
  3. CATP - The principal energy carrying compound in the cell
  4. Dr-RNA - RNA molecules found in ribosomes

Correct answer

B. Purine - Nitrogenous bases Cytosine, thymine and uracil

Step-by-step solution

Cytosine, thymine, and uracil are single ring compounds i.e. pyrimidines while adenine and guanine are purines.

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