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Multiple Choice
Which is a way that RNA differs from DNA?
A
RNA is double-stranded, while DNA is single-stranded.
B
RNA is more stable than DNA under alkaline conditions.
C
RNA contains the base thymine, while DNA contains the base uracil.
D
RNA contains the sugar ribose, while DNA contains the sugar deoxyribose.
Verified step by step guidance
1
Identify the structural components of RNA and DNA. RNA contains the sugar ribose, while DNA contains the sugar deoxyribose.
Understand the difference in the sugar molecules: Ribose has a hydroxyl group (-OH) on the 2' carbon, whereas deoxyribose has a hydrogen atom (H) instead.
Recognize that RNA is typically single-stranded, whereas DNA is double-stranded, forming a double helix.
Note that RNA contains the base uracil, while DNA contains the base thymine.
Consider the stability of RNA and DNA: RNA is less stable than DNA under alkaline conditions due to the presence of the 2' hydroxyl group in ribose, which can participate in hydrolysis.