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Q: Millon's test is positive for which amino acid
  • A. Tyrosine
  • B. Tryptophan
  • C. Arginine
  • D. Leucine
Correct Answer: Option A - Millon's test is positive for amino acid Tyrosine. A red or pink colour solution or precipitate that forms in heating is an indication that tyrosine is present (a positive result). Since tyrosine is an amino acid occurring in nearly all proteins, million's test is used for detecting proteins. Therefore, proteins without tyrosine residues cannot be detected using this test.
A. Millon's test is positive for amino acid Tyrosine. A red or pink colour solution or precipitate that forms in heating is an indication that tyrosine is present (a positive result). Since tyrosine is an amino acid occurring in nearly all proteins, million's test is used for detecting proteins. Therefore, proteins without tyrosine residues cannot be detected using this test.

Explanations:

Millon's test is positive for amino acid Tyrosine. A red or pink colour solution or precipitate that forms in heating is an indication that tyrosine is present (a positive result). Since tyrosine is an amino acid occurring in nearly all proteins, million's test is used for detecting proteins. Therefore, proteins without tyrosine residues cannot be detected using this test.