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______ carbon atoms of successive nucleotides of nucleic acid are linked by Phospho-diester bond. -

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Question

______ carbon atoms of successive nucleotides of nucleic acid are linked by Phospho-diester bond.

Options

  • C5 - C4

  • C5 - C3

  • C5 - C1

  • C5 - C2

MCQ
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Solution

C5 - C3 carbon atoms of successive nucleotides of nucleic acid are linked by Phospho-diester bond.

Explanation:

Phosphodiester bond in nucleotides occurs mainly between CS and C3 positions. So the direction of synthesis is always 5' to 3 '.

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