Multiple choice

All of the following are constituents of RNA molecule except

  1. Adenine

  2. Guanine

  3. Thymine

  4. Uracil

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

RNA contains the nitrogenous bases adenine, guanine, cytosine, and uracil. Thymine is found in DNA, not RNA, where it is replaced by uracil.