According to the research, the correct option is nucleic acid. An organic molecule, smaller than protein, that contains nitrogen is called nucleic acid.
<h3>What is a nucleic acid?</h3>
They are macromolecules or biological polymers formed by monomers that are joined by phosphodiester bonds (a kind of covalent bond) present in cells rich in carbon, hydrogen, oxygen, nitrogen.
Each nucleic acid comprises a pentose sugar molecule (deoxyribose for DNA and ribose for RNA), and a slightly different set of nitrogenous bases (adenine, guanine, cytosine, and thymine in DNA; adenine, guanine, cytosine, and uracil in RNA).
Therefore, we can conclude that according to the research, the correct option is nucleic acid. An organic molecule, smaller than protein, that contains nitrogen is called nucleic acid.
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