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In the nucleoside a base is attached at 1′ position of sugar moiety. Nucleotide is formed by linking the phosphoric acid unit to the sugar unit of nucleoside. At which position of sugar unit is the phosphoric acid linked in a nucleoside to give a nucleotide?

Options

  1. APhosphoric acid is linked at 1′-position of sugar moiety of nucleoside to give a nucleotide.
  2. BPhosphoric acid is linked at 5′-position of sugar moiety of nucleoside to give a nucleotide.
  3. CPhosphoric acid is linked at 3′-position of sugar moiety of nucleoside to give a nucleotide.
  4. DPhosphoric acid is not linked to nucleoside

Correct answer

B. Phosphoric acid is linked at 5′-position of sugar moiety of nucleoside to give a nucleotide.

Step-by-step solution

Correct Option is : (B) Phosphoric acid is linked at 5′-position of sugar moiety of nucleoside to give a nucleotide.

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