Multiple Choice
In both DNA and RNA, which nitrogenous bases are present?
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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 nucleotides?
A
Glucose
B
Ribose
C
Deoxyribose
D
Fructose
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 the sugar in RNA.
Recognize that RNA contains a different pentose sugar than DNA, which is ribose, characterized by having a hydroxyl group (-OH) attached to the 2' carbon.
Eliminate other options such as glucose and fructose, which are hexose sugars (six-carbon sugars) and not found in nucleotides.
Conclude that the pentose sugar found in RNA nucleotides is ribose.
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