Which of the following is NOT a way that $\mathrm{RNA}$ is different from $\mathrm{DNA}$?

• A. $\mathrm{RNA}$ contains uracil instead of thymine.
• B. $\mathrm{RNA}$ is typically single-stranded, while $\mathrm{DNA}$ is double-stranded.
• C. $\mathrm{RNA}$ and $\mathrm{DNA}$ both have the same type of sugar in their backbone.
• D. $\mathrm{RNA}$ has a ribose sugar, whereas $\mathrm{DNA}$ has a deoxyribose sugar.

Answer: (C)

Verified step by step guidance

1. Identify the structural components of RNA and DNA, focusing on the sugar and nitrogenous bases present in each.
2. Understand that RNA contains the nitrogenous base uracil, while DNA contains thymine. This is a key difference between the two nucleic acids.
3. Recognize that RNA is typically single-stranded, whereas DNA is double-stranded. This structural difference is another distinguishing feature.
4. Examine the sugar component of the nucleic acids: RNA contains ribose sugar, while DNA contains deoxyribose sugar. This is a fundamental difference in their backbone structure.
5. Evaluate the statement that RNA and DNA have the same type of sugar in their backbone. Since RNA has ribose and DNA has deoxyribose, this statement is incorrect, making it the answer to the question.