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| Description: Amino acids can be covalently linked together by formation of an amide bond between the a-carboxylic acid group on one amino acid and the a-amino group on another. This bond is often referred to as a peptide bond, and the products formed by such a linkage are called peptides. A peptide composed of 2 amino acids is called a dipeptide. A peptide composed of 4 amino acids is called a tetrapeptide. Picture Stats: Views: 359 Filesize: 134.33kB Height: 662 Width: 633 Source: https://biology-forums.com/index.php?action=gallery;sa=view;id=33913 |