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no!

no change in colour confirms presence of cysteine

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14y ago

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More answers

Yes, cysteine would test positive in a biuret test. This is because cysteine, like other amino acids, contains peptide bonds that react with the copper ions in the biuret reagent to form a purple color complex.

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10mo ago
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Q: Would cysteine test positive in a biuret test?
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