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Multiple Choice
Which of the following is classified as a nucleic acid?
A
DNA
B
Lipids
C
Glucose
D
Protein
Verified step by step guidance
1
Identify the definition of a nucleic acid: Nucleic acids are biopolymers essential to all known forms of life. They are composed of monomers called nucleotides, which consist of a sugar, a phosphate group, and a nitrogenous base.
Recognize the two main types of nucleic acids: DNA (deoxyribonucleic acid) and RNA (ribonucleic acid). These molecules are responsible for the storage and expression of genetic information.
Examine the options provided: DNA, Lipids, Glucose, and Protein.
Determine the classification of each option: DNA is a nucleic acid, Lipids are fats and oils, Glucose is a simple sugar, and Proteins are made of amino acids.
Conclude that DNA is the only option that fits the definition of a nucleic acid, as it is composed of nucleotides and is involved in genetic information storage.