In which of the following pairs of nucleic acid bases are both members of the pair "single ring" bases?

Name: In which of the following pairs of nucleic acid bases are both members of the pair "single ring" bases?
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Question

Quizplus · Accepted Answer

Both thymine (T) and uracil (U) are single ring bases, while adenine (A) and guanine (G) are double ring bases. Cytosine (C) is a single ring base, but it is paired with a double ring base (G) in DNA and RNA. Therefore, the correct answer is choice C, T and U.

In Which of the Following Pairs of Nucleic Acid Bases