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
True about integrin is - 
Select and explain. 
A. Used in binding, B. Oncogene, C. Anti oncogene, D. All
A: Used in binding
Answer: A: Used in binding 
Explanation: Ans. is 'a' i.e., Used in bindingo Integrins are adhesion molecules on leukocytes, they help in adhesion and Transmigration of leukocytes from blood vessels.