The nitrogenous bases found in nucleotides are classified as pyrimidines or what?
- Correct Answer: purines
- Science
- Fallen
- terpenes
Explanation: The nitrogenous bases found in nucleotides are classified as pyrimidines or purines. Pyrimidines are heterocyclic amines with two nitrogen atoms in a six-member ring and include uracil, thymine, and cytosine. (For more information about heterocyclic amines, see Chapter 15 "Organic Acids and Bases and Some of Their Derivatives", Section 15.13 "Amines as Bases". ) Purines are heterocyclic amines consisting of a pyrimidine ring fused to a five-member ring with two nitrogen atoms. Adenine and guanine are the major purines found in nucleic acids (Figure 19.2 "The Nitrogenous Bases Found in DNA and RNA"). Figure 19.2 The Nitrogenous Bases Found in DNA and RNA.
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