A genetic disorder of metabolism

• Lack of the enzyme needed to turn phenylalanine into tyrosine results in an accumulation of phenylalanine in the body fluids which causes various degrees of mental deficiency

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The pku , alternatively spelled pzuk , is an Armenian musical instrument, similar to a clarinet . It has been called the national instrument of Armenia. The pku is a single-reed aerophone with seven holes and a one octave range with the open cone of a bull ...