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NTA Abhyas NEET2020ChemistryBiomoleculesPractice

Which of the following is only present in RNA?

Options

  1. A5-methyl uracil
  2. B2,4 dioxy uridylate
  3. C6-amino purine
  4. D2-amino 6-oxy purine

Correct answer

B. 2,4 dioxy uridylate

Step-by-step solution

RNA is made up of four nucleotides adenylic acid, guanylic acid, cytidylic acid and uridylic acid. Adenylic acid, guanylic acid, and cytidylic acid are present in both DNA and RNA. But uridylic acid is present only in RNA. Instead in DNA thymidylic acid is present. Another name of thymine is 5-methyl uracil and 2,4 dioxy uridylate is also known as uracil.

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