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Exam questionKROK 1Medicine · 2020

One of the causes of pernicious anemia is the disturbed synthesis of transcorrin - Castle’s intrinsic factor - in the parietal cells of the stomach. What substance is called Castle’s extrinsic factor?

Answer options

  1. Pyridoxine
  2. Folic acid
  3. Cobalamin
  4. Biotin
  5. Riboflavin
Correct answer

Cobalamin

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