This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Genetics, Subject name: Pathology
EhlerDanlos syndrome is due to defect in? 
Select and explain. 
A. Elastin, B. Collagen, C. Keratin, D. Laminin
B: Collagen
Answer: B: Collagen 
Explanation: Ans. (b) CollagenRef: Robbin's 8th ed ch:3