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: Medicine
Which one of the following diseases is an autosomal dominant disorder 
Select and explain. 
A. Hemochromatosis, B. Phenylketonuria, C. Maturity onset diabetes of the young, D. Glucose-6 phosphate dehydrogenase deficiency
C: Maturity onset diabetes of the young
Answer: C: Maturity onset diabetes of the young 
Explanation: Maturity-onset diabetes of the young (MODY) is a heterogeneous single gene disorder characterized by non-insulin-dependent diabetes, an early onset and autosomal dominant inheritance.Approximately 15-20% of families fitting MODY criteria do not have mutations in any of the known genes Ref Robbins 9/e pg 155