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

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

Answer: (D)

Verified step by step guidance

1. Recall that nucleic acids DNA and RNA are composed of nitrogenous bases, sugars, and phosphate groups. The nitrogenous bases are key to distinguishing DNA from RNA.
2. Identify the four nitrogenous bases found in DNA: adenine (A), thymine (T), cytosine (C), and guanine (G).
3. Recognize that in RNA, thymine (T) is replaced by uracil (U), so the four bases in RNA are adenine (A), uracil (U), cytosine (C), and guanine (G).
4. Compare the given options to see which set contains adenine, uracil, cytosine, and guanine without thymine.
5. Conclude that the correct set of nitrogenous bases in RNA is adenine, uracil, cytosine, and guanine.