University of Wyoming Online, Campus Programs. College Degree Finder. The University of Wyoming (or UW), located in Laramie, Wyoming, is a land-grant university that offers more than 190 undergraduate, graduate, and certificate programs. In addition to its main campus, distance education programs are available.
answered by Lifeeasy Authors. 1  The ribosome moves forward on the m-RNA, one codon at a time and finally reaches the termination codon (UAA/ UAG/ UGA). 2  As termination codon does not code for any amino acid, the polypeptide chain breaks and the protein molecule is seperated.
The nonsense mutation converts a codon (a triplet of bases) that encodes an amino acid into a stop codon, one that specifies the termination of translation. There are three nonsense codons (UAG, UAA, and UGA) in mRNA. One of them comes normally at the end of each polypeptide. A nonsense codon is a stop codon which is out of place. Catching such a defective messenger RNA (mRNA) before a truncated and potentially harmful protein is synthesized is the job of what is called the nonsense-mediated mRNA decay (NMD) pathway.