A. mARN : AUG GAU XAU UAX AGX UAG
protein: Met - Asp - His - Tyr - Ser
B. mARN: AUG GAU XAU XAX AGU UAG
protein: Met - Asp - His - His - Ser
C. mARN: AUG GAX XAU UAX AGU UAG
protein : Met - Asp - His - Tyr - Ser
D. mARN: AUG GAU XAX UAX AGU UAG
Protein : Met - Asp - His - Tyr - Ser
Vậy Chọn B