Adenine and guanine are pyrimidines.
True
False
Adenine and guanine belong to the double-ringed class of molecules called purines. Cytosine, thymine, and uracil are all pyrimidines.
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.