This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Structure and function of protein, Subject name: Biochemistry
Aspaame contains 
Select and explain. 
A. Phenylalanine, B. Histidine, C. Tryptophan, D. Tyrosine
A: Phenylalanine
Answer: A: Phenylalanine 
Explanation: Aspaame is made from aspaic acid and phenylalanine , both are aminoacds . It is 200 times sweeter than sugar. Aspaame is not suitable for people with phenlketonuria. REFERNCE : DM VASUDEVAN TEXTBOK EIGHTH EDITION ; Page no: 99