Multiple Choice
In a single strand of DNA, which chemical group links the deoxyribose sugars together to form the sugar-phosphate backbone?
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7. DNA and Chromosome Structure
DNA Structure
Multiple Choice
Which sugars are found in DNA and RNA, respectively?
A
DNA contains deoxyribose and RNA contains ribose.
B
Both DNA and RNA contain ribose.
C
Both DNA and RNA contain deoxyribose.
D
DNA contains ribose and RNA contains deoxyribose.
Verified step by step guidance1
Recall the basic structural components of nucleic acids, which include a sugar, a phosphate group, and a nitrogenous base.
Identify the sugar present in DNA by remembering that DNA stands for deoxyribonucleic acid, indicating the sugar is deoxyribose.
Identify the sugar present in RNA by noting that RNA stands for ribonucleic acid, indicating the sugar is ribose.
Understand the difference between ribose and deoxyribose: ribose has a hydroxyl group (-OH) on the 2' carbon, while deoxyribose lacks this hydroxyl group (has just a hydrogen) at the same position.
Conclude that DNA contains deoxyribose and RNA contains ribose based on their names and structural differences.
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