Question

A nucleotide has three components

• A. a nitrogenous base, a hextose sugar and a phosphate group
• B. a nitrogenous base, a pentose sugar and a phosphate group
• C. a nitrogenous base, a pentose sugar and a bisphosphate group
• D. a nitrogenous base, a pentose sugar and a triphosphate group

Answer 1

Answer: (B)

A nucleotide has three component, a nitrogenous base, a pentose sugar (nucleoside) and a phosphate group. Nucleic acid (RNA and DNA) is a long chain polymer of (polynucleotide) composed of monomeric unit called nucleotide. Nucleotides are ribonucleotides (RNA) and deoxyribonucleotides (DNA) like AMP (adenosine monophosphate) or adenylic acid and d AMP (deoxy adenosine monophosphate or deadenylic acid respectively).