Which nitrogenous base is unique to RNA molecules?
A) uracil
B) cytosine
C) adenine
D) guanine
E) thymine

Name: Which nitrogenous base is unique to RNA molecules? A) uracil B) cytosine C) adenine D) guanine E) thymine
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Question

Quizplus · Accepted Answer

Uracil is found only in RNA molecules, whereas thymine is only found in DNA molecules. Both molecules are pyrimidines, but uracil lacks a methyl group that is present in thymine.

Which Nitrogenous Base Is Unique to RNA Molecules