Join thousands of students who trust us to help them ace their exams!Watch the first video
Multiple Choice
Which of the following is a key structural difference between DNA and RNA?
A
DNA is single-stranded, while RNA is double-stranded.
B
DNA contains uracil, while RNA contains thymine.
C
DNA contains deoxyribose sugar, while RNA contains ribose sugar.
D
DNA is found only in the cytoplasm, while RNA is found only in the nucleus.
Verified step by step guidance
1
Identify the structural components of DNA and RNA. DNA and RNA are both nucleic acids composed of nucleotides, which include a sugar, a phosphate group, and a nitrogenous base.
Examine the sugar component of each nucleic acid. DNA contains deoxyribose sugar, which lacks an oxygen atom at the 2' position, while RNA contains ribose sugar, which has an oxygen atom at the 2' position.
Consider the nitrogenous bases present in DNA and RNA. DNA contains adenine, thymine, cytosine, and guanine, whereas RNA contains adenine, uracil, cytosine, and guanine.
Analyze the structural form of DNA and RNA. DNA is typically double-stranded, forming a double helix, while RNA is usually single-stranded.
Evaluate the cellular location of DNA and RNA. DNA is primarily located in the nucleus of eukaryotic cells, while RNA can be found in both the nucleus and the cytoplasm, where it plays a role in protein synthesis.