MolSynapsequestion bank
MolSynapse / Question bank / Biomolecules / Nucleic acids: nucleotides, DNA and RNA
NEET levelSingle correct optionDifficulty 1 of 3bm202

A nucleoside consists of

  1. Aa nitrogenous base, a pentose sugar and a phosphate group
  2. Ba nitrogenous base and a pentose sugar
  3. Ca pentose sugar and a phosphate group only
  4. Da nitrogenous base and a phosphate group only

Answer: B

A nucleoside is base + sugar joined by an N-glycosidic bond; adding a phosphate ester on the sugar gives a nucleotide.
Practice Biomolecules More on Nucleic acids: nucleotides, DNA and RNA

More questions on Nucleic acids: nucleotides, DNA and RNA