Chemistry - Biomolecules Question with Solution | TestHub

When two amino acids combine, one molecule of water is eliminated to form one amide (peptide) bond.

Thus, $2$ amino acids form $1$ amide bond.

Similarly, $3$ amino acids form $2$ amide bonds.

In general, $n$ amino acids are linked together by $(n-1)$ amide bonds.

Therefore, the number of amino acids linked by $(n-1)$ amide bonds is $n$.

Answer: n