Multiple Choice
How does base pairing in RNA differ from base pairing in DNA?
38
views
7. DNA and Chromosome Structure
RNA
Multiple Choice
Which sugar distinguishes RNA from DNA?
A
Fructose
B
Glucose
C
Ribose
D
2-deoxyribose
Verified step by step guidance1
Understand that DNA and RNA are both nucleic acids composed of nucleotides, and each nucleotide contains a sugar, a phosphate group, and a nitrogenous base.
Recall that the sugar component in DNA is called 2-deoxyribose, which lacks an oxygen atom on the 2' carbon compared to ribose.
Recognize that the sugar in RNA is ribose, which has a hydroxyl group (-OH) attached to the 2' carbon, distinguishing it from DNA's sugar.
Note that fructose and glucose are sugars found in other biological molecules but are not components of nucleic acids.
Conclude that the key sugar difference between RNA and DNA is that RNA contains ribose, while DNA contains 2-deoxyribose.
Related Videos
Related Practice
