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Proteins are _______(a) dipeptides(b) tripeptides(c) tetrapeptides(d) polypeptidesThis question was posed to me at a job interview.This interesting question is from Biomolecules topic in division Biomolecules of Chemistry – Class 12

Answer»

Correct option is (d) polypeptides

To explain: When the number of amino acids in a peptide is more than ten, it is a polypeptide. But when a polypeptide has more than a 100 amino acid residues, with MOLECULAR MASS higher than 10000u, it is CALLED a PROTEIN. However, this is not true in all cases (LIKE insulin).



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