Nonsense mutation means the point mutation happens, and then make the same genetic code, which used to be the code of amino becomes a stop code. The result of this mutation is a polypeptide terminated where the mutation occurred. That created it is shorter than the original (premature termination of translation), for example, if the original bass sequences as the TGG of Trp if mutation as TGA as a result of the transition, instead of a bass. Transcription mRNA codon sequence when a bass TGA will become UGA, which is a synthetic polypeptide that stop codes coming up will be stopped at this location instead of reading the code is original, Trp. The result is a polypeptide that is shorter than the original.
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