Multiple Choice
Which set correctly lists the three major types of RNA found in cells and their primary roles in gene expression?
30
views
7. DNA and Chromosome Structure
RNA
Multiple Choice
In RNA, what sugar is found in the nucleotide backbone?
A
Ribose
B
Deoxyribose
C
Fructose
D
Glucose
Verified step by step guidance1
Understand that nucleotides, the building blocks of nucleic acids like DNA and RNA, consist of three components: a nitrogenous base, a phosphate group, and a sugar molecule.
Recall that the sugar component in nucleotides differs between DNA and RNA, which is a key factor in their structural and functional differences.
Identify that in DNA, the sugar is deoxyribose, which lacks one oxygen atom compared to ribose, while in RNA, the sugar is ribose, which contains a hydroxyl group (-OH) on the 2' carbon.
Recognize that fructose and glucose are sugars but are not components of nucleotide backbones; they are primarily involved in energy metabolism.
Conclude that the sugar found in the nucleotide backbone of RNA is ribose, distinguishing it from DNA's deoxyribose.
Related Videos
Related Practice
