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NTA Abhyas NEET2020ChemistryBiomoleculesPractice

Which of the following is a nucleoside?

Options

  1. AAdenylic acid
  2. BCytosine
  3. CUridine
  4. DThiamine

Correct answer

C. Uridine

Step-by-step solution

Nucleotide =Nucleoside + Phosphate group Nucleoside = Nucleobase + Five carbon sugar Uridine is a glycosylated pyrimidine analog containing uracil attached to a ribose ring. As it is doesn't contain a phosphate group, it is called a nucleoside. Adenylic acid is Adenosine monophosphate; Cytosine is a nucleotide whereas thiamine is a vitamin B1.

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