Answer :
False, Proteins are always made from one polypeptide chain.
Amino acids are the basic units of proteins. They are tiny organic compounds with an alpha (central) carbon atom coupled to an amino group, a carboxyl group, a hydrogen atom, and a variable component known as a side chain (see below). Peptide bonds, which connect several amino acids, help proteins create lengthy chains of amino acids. The biological process that links the carboxyl group of one amino acid to the amino group of a nearby amino acid results in the extraction of a water molecule, forming peptide bonds. A protein's main structure is thought to be the orderly arrangement of its amino acids.
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