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
Transfer of an amino group from an amino acid to an alpha-keto acid is done by which of the following enzymes? 
Select and explain. 
A. Transaminases, B. Oxidases, C. Transketolases, D. Deaminases
A: Transaminases
Answer: A: Transaminases 
Explanation: Transaminase is the enzyme which transfer alpha amino group from one alpha amino acid to another alpha keto acid forming a new alpha amino acid. Ref: Textbook of biochemistry by DM Vasudevan3rd edn/page 161.