Eight questions to test general diabetes knowledge (e.g., “Which is the best method for testing blood glucose”), eight questions to test knowledge of insulin use (e.g., “If you are sick with the flu, which of the following changes should you make?”), five questions to test knowledge of complications, six question about knowledge of diabetic diet, one question about physical exercise and one question about glucagon use. The gene discussed is GCG; the disease is diabetes mellitus.