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
The commonest mode of inheritance of Von Willebrand's diasease - 
Select and explain. 
A. Codominant, B. Autosomal recessive, C. Autosomal dominant, D. X linked recessive
C: Autosomal dominant
Answer: C: Autosomal dominant 
Explanation: Ans. is 'c' i.e., Autosomal dominant Von willebrand disease is of following types : ? Type I (most common 70%) Autosomal dominant, with reduced quantity of vWF. Type II (25%) --> Autosomal dominant, with qualitative defect of vWF. Type III Autosomal recessive, with reduced quantitiy of vWF.