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: Biochemistry
All are examples of point mutation, except ? 
Select and explain. 
A. Silent mutation, B. Frame-shift mutation, C. Missense mutation, D. Nonsense mutation
B: Frame-shift mutation
Answer: B: Frame-shift mutation 
Explanation: Ans. is 'b' i.e., Frame-shift mutation