Examlex
Which of the following is a discrete numerical variable?
Chymotrypsin
Chymotrypsin is a digestive enzyme that breaks down proteins in the small intestine.
Peptide
A short chain of amino acids linked by peptide bonds, forming the building blocks of proteins.
Ninhydrin
A chemical reagent used to detect amino acids and proteins by producing a deep blue-violet color.
Histidine
An essential amino acid in humans, involved in the growth and repair of tissues and the production of histamine.
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