Q24 / 160 · JIPMER 2012 · Botany

Nucleotides are formed by

  • A
    purine, sugar and phosphate
  • B
    purine, pyrimidine and phosphate
  • Correct answer
    C
    purine, pyrimidine, sugar and phosphate
  • D
    pyrimidine, sugar and phosphate

Solution

The nucleotide is formed by the union of a phosphate group with a nucleoside. A nucleoside infact contains a sugar molecule alongwith an organic nitrogenous base. Thus, a nucleotide contains an organic nitrogenous base (purine or pyrimidine) alongwith a sugar molecule and a phosphate group, i.e., Nucleoside $=$ Sugar molecule + organic nitrogenous base.

Hence, the correct answer is option: 'C'.

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