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
Which arm of tRNA binds it to vibosomal surface 
Select and explain. 
A. DHU arm, B. Pseudouridine arm, C. Acceptor arm, D. Anticodon arm
B: Pseudouridine arm
Answer: B: Pseudouridine arm 
Explanation: Pseudoridine arm of tRNA is involved in binding of aminoacyl tRNA to ribosomal surface.