This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General anatomy, Subject name: Anatomy
On electron microscope amyloid characteristically exhibit 
Select and explain. 
A. Beta pleated sheat, B. Hyaline globules, C. 7.5-10nm fibrils, D. 20-25nm fibrils
C: 7.5-10nm fibrils
Answer: C: 7.5-10nm fibrils 
Explanation: Ref Robbins 6/e 2598/e p24909/e p257 Remember beta pleated structure of amyloid is seen on X Ray crystallography where as it is seen as no branching fibrils of 7.5-10 nm diameter and infinite lenght on electron microscope