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practice testMultiple Choice

Practice Test

Question 2 • Biology

Which statement describes one way that RNA differs from DNA?

Answer
A
One is a protein, and the other is a nucleic acid.
B
They are both carbohydrates, but one is a polysaccharide.
C
One provides energy, and the other carries genetic information.
D
They contain different five-carbon sugars and a different nitrogenous base.

Explanation

RNA contains the five-carbon sugar ribose, while DNA contains deoxyribose. RNA uses the nitrogenous base uracil, whereas DNA uses thymine. Therefore, they differ in both their sugar and one of their nitrogenous bases, as choice D states.

AI-written and checked against the verified answer.

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