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The Dark Biopigment Melanin, Found In Skin, Hair, Feathers, And Scales, Is Produced As An End-Product In The Metabolism Of Which Amino Acid? This Amino Acid Was First Discovered In 1846 By The German Chemist Justus Von Liebig In The Cheese Protein Casein [Kay-Seen].'''

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1. The Dark Biopigment Melanin, Found In Skin, Hair, Feathers, And Scales, Is Produced As An End-Product In The Metabolism Of Which Amino Acid? This Amino Acid Was First Discovered In 1846 By The German Chemist Justus Von Liebig In The Cheese Protein Casein [Kay-Seen].'''





 
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