Written by the Fiveable Content Team • Last updated September 2025
Written by the Fiveable Content Team • Last updated September 2025
Definition
Pyrimidine is a type of nitrogenous base found in the nucleotides of DNA and RNA, characterized by a single ring structure. It plays a crucial role in encoding genetic information and protein synthesis.
Related terms
Nucleotide: The basic structural unit of DNA and RNA, consisting of a sugar, a phosphate group, and a nitrogenous base.
DNA (Deoxyribonucleic Acid): A molecule that carries the genetic instructions used in growth, development, functioning, and reproduction of all known living organisms.
RNA (Ribonucleic Acid): A nucleic acid present in all living cells that acts as a messenger carrying instructions from DNA for controlling the synthesis of proteins