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
_____________ is coded for by Initiator codon 
Select and explain. 
A. Cystine, B. Arginine, C. Methionine, D. Lysine
C: Methionine
Answer: C: Methionine 
Explanation: AUG acts as the initiator codon. Also acts as the codon for methionine. In a few proteins, GUG may be the initiator codon