Biochemistry Mutations & Codons d97b48f1 Sta codon is: A UAA B UAG C UGA D AUG High-Yield Explanation AUG : Sta Codon - Methionine First Amino acids in protein: Methionine (Eukaryotes) Formyl Methionine (Prokaryotes) Other three are stop codons: UAA, UAG, UGA