KROK 1 2011 – Question 17 · KROK (Medicine) · Biological Chemistry
A patient has pellagra. Interrogation revealed that he had lived mostly on maize for a long time and eaten little meat. This disease had been caused by the deficit of the following substance in the maize:
- A. Histidine
- B. Tyrosine
- C. Tryptophan
- D. Proline
- E. Alanine
Hint
Pellagra is a niacin deficiency; ask which amino acid can serve as a precursor of that vitamin and is scarce in a maize-based diet.
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