Multiple Choice
In RNA, what is the name of the five-carbon sugar found in the nucleotide backbone?
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7. DNA and Chromosome Structure
RNA
Multiple Choice
In RNA, which pentose sugar is found in the backbone of the nucleotides?
A
Ribose
B
Glucose
C
Fructose
D
Deoxyribose
Verified step by step guidance1
Understand that nucleotides in nucleic acids consist of three components: a nitrogenous base, a phosphate group, and a pentose sugar.
Recall that the pentose sugar in DNA is deoxyribose, which lacks one oxygen atom compared to ribose.
Recognize that RNA contains a different pentose sugar than DNA, which includes an oxygen atom on the 2' carbon.
Identify that the pentose sugar in RNA is ribose, which has a hydroxyl group (-OH) attached to the 2' carbon.
Conclude that among the options given (Ribose, Glucose, Fructose, Deoxyribose), ribose is the correct pentose sugar found in the RNA backbone.
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