The purine bases have a double-ring structure. Adenine and Guanine are the two primary purines found in both DNA and RNA.
The purines present in nucleic acids are : I. Adenine and Cytosine II. Guanine and Thymine III. Adenine and Guanine IV. Cytosine and Uracil
Asked in TNPSC CS Prelims 2015 · Topic: Cell (Prokaryotic and Eukaryotic Cells: Structural Organization and Differences)
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