Answer : 1 Amino acids Explanation : Answer: A) Amino acids Explanation: Proteins are long chains of Amino acids. That is in brief, Amino acids are the monomers of Proteins. Amino acids are compounds which contain both an amino group and a carboxylic group. Proteins are made up of 20 essential amino acids.Monomer means a small molecule of an organic substance i.e, building block in general.
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