Which one of the codons below would stop the translation of mRNA by ribosomal subunits? 1. CUG, AUG, GUA
2. ATG, AAG, AAA
3. AUG, ATG, GTU
4. UAG, UAA, UGA

The correct option is D) UAG, UAA, UGA

Explanation:

The amino acid sequencing code or mRNA code contains specific codes which start and stop the process of translation at the right time. If the stop codon were not present then the ribosomal machinery would have made faulty proteins. If the stop codons are not at the right place, then it results in the production of faulty proteins. The stop codons which terminate the process of translation are UAG, UAA and UGA.

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