This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General physiology, Subject name: Physiology
Function of ubiquitin 
Select and explain. 
A. Binding, B. Transpo, C. Degradation, D. Assembely
C: Degradation
Answer: C: Degradation 
Explanation: Ubiquitin plays a major role in protein destruction. (Ref: Textbook of physiology N Geetha 2nd edition page no.10)