This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Medicine
Wiskott Aldrich syndrome is associated with all of the following except : 
Select and explain. 
A. Thrombocytopenia, B. Recurrent infections, C. Low levels of IgG, D. Deficient cell mediated immunity
C: Low levels of IgG
Answer: C: Low levels of IgG 
Explanation: Answer is C (Low levels of IgG) : 'Immunoglobulin defect in Wiskott-Aldrich syndrome include low serum concentration of IgM. IgA & IgG are normal and IgE is frequently increased' - Harrison 'Serum IgM levels is low but IgG and IgA levels are normal or elevated' - Ananthnaravanan