Answer:
this mutation 5'-ATG GCT CAA TGA GTA-3 is right answer
Step-by-step explanation:
non sense mutation is the change in nucleotide sequence which will result in short protein or chain termination codon.
actual protein MAQCV encoded by 5'-ATG GCT CAA TGC GTA-3',
5'-ATG GCT CAA TGA GTA-3 results in MAQ-V. so resulting in stop codon which will stop the further protein chain synthesis.