Which of the following individual organic compounds strictly belong to the Pyrimidine structural cla — Biomolecules Chemistry Question

💡 Solution & Explanation

Pyrimidines are characterized by a single six-membered heterocyclic ring containing two nitrogen atoms. Cytosine ($C$), Thymine ($T$), and Uracil ($U$) are the three standard pyrimidines. Adenine ($A$) features a fused double-ring system and is firmly classified as a purine.