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Approximately 32 different monomeric carbohydrate subunits are found in various natural polysaccharides. Proteins are composed of 20 different amino acids. DNA and RNA are each synthesized from four nucleotides.
-Among these biological polymers, which has the least structural variety?
A) polysaccharides
B) proteins
C) DNA
D) RNA

Question

Quizplus · Accepted Answer

Both DNA and RNA are composed of only four nucleotides, while proteins have 20 different amino acids and polysaccharides have approximately 32 different monomeric carbohydrate subunits. Therefore, DNA and RNA have the least structural variety among these biological polymers.

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