The redundancy of genetic code allows in many cases several possible nucleotides in the second and especially in the third codon position without altering the amino acid. The nucleotide change in the codon triplet leads new codon coding for a new amino acid once translated. The nucleotide change in the codon triplet creates a new terminator codon. The nucleotide change in the terminator codon of the reference sequence. Seldom used on its own.
Mutation causes an exon to be included in the spliced out region.
B.6.2. editing Editing of RNA is affected. No RNA is produced. Can be caused by mutations affecting the RNA polymerase binding. Can be caused by promoter mutations. B.7.4. decreased transcription Mutation decreases the efficiency of the RNA production.