Precursor of melanin is________________?
Correct answer: A. Tyrosine
- A. Tyrosine
- B. Tryptophan
- C. Phenylalanine
- D. Methionine
Explanation
Tyrosine is converted by tyrosinase into DOPA and subsequently into melanin. Phenylalanine can contribute indirectly because it is first converted to tyrosine.
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