Which set correctly lists the four nitrogenous bases found in RNA?

• A. Uracil, thymine, cytosine, guanine
• B. Adenine, uracil, cytosine, thymine
• C. Adenine, uracil, cytosine, guanine
• D. Adenine, thymine, cytosine, guanine

Answer: (C)

Verified step by step guidance

1. Recall that RNA (ribonucleic acid) is composed of four nitrogenous bases, which are the building blocks of its nucleotide structure.
2. Understand that the four bases in RNA include adenine (A), uracil (U), cytosine (C), and guanine (G). Note that uracil replaces thymine, which is found in DNA instead.
3. Identify that thymine (T) is present in DNA but not in RNA, so any option containing thymine is incorrect for RNA bases.
4. Compare each given set of bases to the known RNA bases: adenine, uracil, cytosine, and guanine.
5. Conclude that the correct set listing the four nitrogenous bases in RNA is adenine, uracil, cytosine, and guanine.