DNA and RNA differ primarily in their sugar components; RNA contains ribose while DNA contains deoxyribose. Additionally, RNA is single-stranded, whereas DNA is double-stranded. RNA also utilizes uracil in place of thymine found in DNA.

1. How does DNA differ from RNA?
A. RNA uses only purines
B. RNA uses a different five-carbon sugar
C. RNA has a contains different sized phosphate groups
D. RNA has multiple bases attached to the sugar
Solution
B. RNA uses a different five-carbon sugar. RNA has the ribose pentose; whereas in DNA, the
pentose is deoxyribose.