Question

Which of the following biomolecules does have a phosphodiester bond?

• A. Nucleic acids in a nucleotide
• B. Fatty acids in a diglyceride
• C. Monosaccharides in a polysaccharide
• D. Amino acids in a polypeptide

Answer 1

The correct option is A Nucleic acids in a nucleotide

DNA and RNA are the chain of a polynucleotide which are joined by the phosphodiester bonds. The two nucleotides are linked by the phosphodiester bond.

It is formed by the linkage between the 3' carbon atom of one sugar molecule and the 5' carbon atom of another. Fatty acids, monosaccharides and amino acids do not have phosphodiester bond.