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
In amyloidosis beta pleated sheet will be seen in 
Select and explain. 
A. X Ray crystallography, B. Electron microscope, C. SPiral electron microscope, D. Congo red stain
A: X Ray crystallography
Answer: A: X Ray crystallography 
Explanation: Ref Robbins 9/e p257 Beta pleated structure is seen on x Ray crystallography Election microscope shows non branching fibrils of indefinite length