NEET Sample Paper NEET Sample Test Paper-19

  • question_answer Which of the following biomolecules does have a phosphodiester bond?

    A)  Monosaccharide in a polysaccharide

    B)  Amino acids in a polypeptide

    C)  Nucleic acids in a nucleotide

    D)  Fatty acids in a diglyceride

    Correct Answer: C

    Solution :

    In a nucleic acid a phosphate moiety links the 3'-carbon of one sugar of one nucleotide to the 5'-carbon of the sugar of the succeeding nucleotide. The bond between the phosphate and hydroxyl group of sugar is an ester bond. As there is one such ester bond on either side, it is called phosphodiester bond. Hence, the correct option is [c].


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