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
Semiessential amino acid is - 
Select and explain. 
A. Histidine, B. Alanine, C. Leucine, D. Lysine
A: Histidine
Answer: A: Histidine 
Explanation: Ans. is 'a' i.e., Histidine Arginine and histidine are semi - essential amino acids.