Question

multiple - choice question what are all proteins made of? many sugar monomers linked together a random amount of nucleic acid monomers a glycerol and three fatty acid monomers a combination of 20 amino acid monomers

Explanation:

Proteins are macromolecules composed of amino - acid monomers. There are 20 standard amino acids that can combine in various sequences to form different proteins. Sugar monomers form carbohydrates, nucleic acid monomers form nucleic acids, and a glycerol and three fatty - acid monomers form triglycerides (a type of lipid).

Answer:

A combination of 20 amino acid monomers