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: Pathology
Beal's syndrome is caused due to a defect in which of the following gene? 
Select and explain. 
A. Fibrillin-1 GENE, B. Elastin, C. Lamillin, D. Fibrillin-2
D: Fibrillin-2
Answer: D: Fibrillin-2 
Explanation: Mutation in fibrillin-2 gene have been linked to beal's syndrome whereas fibrillin-1 gene mutation causes marfan's syndrome. Ref: Management of genetic syndrome by Suzanne B. Cassidy, Judith E. Allanson, Page 513