Multiple Choice
Nucleic acids are biomolecules. Which of the following is a primary function of nucleic acids?
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4. Biomolecules
Nucleic Acids
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What is the main difference between DNA and RNA nucleotides?
A
DNA nucleotides contain deoxyribose sugar, while RNA nucleotides contain ribose sugar.
B
DNA nucleotides are single-stranded, while RNA nucleotides are double-stranded.
C
DNA nucleotides have uracil, while RNA nucleotides have thymine.
D
DNA nucleotides are composed of amino acids, while RNA nucleotides are composed of nucleic acids.
Verified step by step guidance1
Begin by understanding the basic structure of nucleotides, which are the building blocks of nucleic acids like DNA and RNA. Each nucleotide consists of three components: a sugar, a phosphate group, and a nitrogenous base.
Identify the sugar component in DNA and RNA nucleotides. DNA contains deoxyribose sugar, which lacks one oxygen atom compared to the ribose sugar found in RNA nucleotides.
Examine the nitrogenous bases present in DNA and RNA. DNA nucleotides include adenine (A), guanine (G), cytosine (C), and thymine (T), whereas RNA nucleotides include adenine (A), guanine (G), cytosine (C), and uracil (U) instead of thymine.
Clarify the structural differences between DNA and RNA. DNA is typically double-stranded, forming a double helix, while RNA is usually single-stranded, allowing it to fold into various shapes.
Understand the composition of nucleotides. Both DNA and RNA nucleotides are composed of nucleic acids, not amino acids. Amino acids are the building blocks of proteins, not nucleic acids.
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