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Exam questionKROK 1Dentistry ยท 2015

Mother had noticed her 5-year-old child's urine to become dark in colour. Bile pigments in urine were not detected. The diagnosis of alkaptonuria was made. What pigment is deficient?

Answer options

  1. Phenylalanine hydroxylase
  2. Homogentisic acid oxidase
  3. Phenylpyruvate decarboxylase
  4. Tyrosinase
  5. Oxyphenylpyruvate oxidase
Correct answer

Homogentisic acid oxidase

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