Multiple Choice
Which set lists the four nitrogenous bases found in RNA?
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7. DNA and Chromosome Structure
RNA
Multiple Choice
In RNA, what is the name of the pentose sugar found in its nucleotide backbone?
A
Ribose
B
Glucose
C
2-deoxyribose
D
Fructose
Verified step by step guidance1
Recall that nucleotides, the building blocks of nucleic acids, consist of three components: a nitrogenous base, a phosphate group, and a pentose sugar.
Understand that the pentose sugar differs between DNA and RNA, which is a key factor distinguishing these two types of nucleic acids.
Identify that in DNA, the pentose sugar is 2-deoxyribose, which lacks an oxygen atom on the 2' carbon compared to ribose.
Recognize that in RNA, the pentose sugar is ribose, which has a hydroxyl group (-OH) attached to the 2' carbon.
Therefore, the pentose sugar found in the nucleotide backbone of RNA is ribose.
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