KROK 1 2020 – Question 81 · KROK (Medicine) · Biological Chemistry
Blood of a patient with bladder cancer has high levels of serotonin and hydroxyanthranilic acid, because of excessive intake of a certain amino acid. Name this amino acid:
- A. Tryptophan
- B. Methionine
- C. Tyrosine
- D. Alanine
- E. Histidine
Hint
Trace both compounds named in the stem back to a single dietary precursor by considering their biosynthetic pathways.
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