This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Translation, Subject name: Biochemistry
Which arm binds the aminoacyl tRNA to the ribosomal surface? 
Select and explain. 
A. Acceptor arm, B. Anticodon arm, C. DHU arm, D. Pseudouridine arm
D: Pseudouridine arm
Answer: D: Pseudouridine arm 
Explanation: Binding site of tRNA Function Acceptor arm Covalent attachment with ester bond Pseudouridine arm Non-covalent binding of A-site of ribosome during initiation and elongation DHU arm Recognize specific Amino Acyl tRNA synthetase enzyme.