Ribonucleic acid is a long polymer of ribonucleotides. Each ribonucleotide is made up of the ribose sugar, phosphoric acid, and a nitrogenous base. The nitrogenous bases in ribonucleotides are of two types- purine bases (adenine and guanine) and pyrimidine bases (cytosine and uracil).
So, the correct answer is option C.
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Similar Questions
Q1
Statement 1: The four nitrogen bases in a DNA molecule are guanine, thymine adenine, cytosine.
Statement 2: Where adenine and thymine are purines and guanine and cytosine are pyrimidines.
Assertion :The heterocyclic compounds in nucleic acid are the nitrogenous bases. Reason: Adenine and guanine are substituted pyrimidines while uracil, cytosine and thymine are substituted purines.