The proteins are made up of linear chain of ...................... linked by ..................... linkage.

Explanation

To answer the question, "The proteins are made up of linear chain of ...................... linked by ..................... linkage," we can break it down into two parts:

1. **Identifying what proteins are made of**:
- Proteins are composed of amino acids. These are the building blocks of proteins.

2. **Identifying the type of linkage**:
- The amino acids in proteins are linked together by peptide bonds (or peptide linkages). This type of bond is formed through a biochemical reaction known as a condensation reaction, which involves the removal of a water molecule.

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