Adenine and Guanine Are

Question

Adenine and guanine are
A) purines represented by T and C.
B) pyrimidines represented by A and G.
C) purines represented by A and G.
D) pyrimidines represented by T and C.
E) nucleotides represented by A and G.

Accepted Answer

Adenine and guanine are both purines, meaning they have a double-ring structure. They are represented by the letters A and G, respectively. The pyrimidines, which have a single-ring structure, are represented by the letters T (thymine) and C (cytosine).