Proteins are polymers--long chains of many similar building blocks linked by covalent bonds. There are 20 building blocks, or monomers, that are used to build proteins. These monomers share a common structure.

The given question is incomplete as question is not specified however the complete question is as follows:

Proteins are polymers--long chains of many similar building blocks linked by covalent bonds. There are 20 building blocks, or monomers, that are used to build proteins. These monomers share a common structure.

Drag the labels to the appropriate blanks on the diagram. (diagram is attached)

The correct answer is - amino acid is in top box, side chain is in the second number, amino group in bottom left and carboxyl group in bottom right box.

Explanation:

Amino acid is the building block of the protein that are linked covalent bonds. These are the monomers of the proteins. There are twenty different amino acids that share common structure the only difference is in their confirmation and arrangement.

Amino acids have A side chain that is attached to the carboxyl group and amino group in their general structure.

Thus, the correct answer is - mino acid is in top box, side chain is in the second number, amino group in bottom left and carboxyl group in bottom right box.

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