In a linear tetrapeptide (Constituted with different amino acids), (number of amino acids)–(number of peptide bonds) is______________________.

In a linear tetrapeptide, there are 4 amino acids.

A peptide bond is a chemical bond formed between two molecules when the carboxyl group of one molecule reacts with the amino group of the other molecule. In a tetrapeptide, these bonds are formed when the amino acids join together.

So, in a tetrapeptide, there are 3 peptide bonds. This is because each bond is formed between two amino acids, and with four amino acids, three bonds are needed to connect them all.

Therefore, the number of amino acids (4) minus the number of peptide bonds (3) equals 1.