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: Biochemistry
The genetic defect in Refsum's disease lies in 
Select and explain. 
A. Alpha oxidation of fatty acids, B. LDL receptors, C. Fatty acid synthase complex, D. Recognition of apo A1
A: Alpha oxidation of fatty acids
Answer: A: Alpha oxidation of fatty acids 
Explanation: None