The most commonly occurring mutation in people with cystic fibrosis is a deletion of a single codon.What is the most likely result of this mutation in the protein product?

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The deletion of a single codon in the gene associated with cystic fibrosis typically results in the protein product missing an amino acid. This is because a codon, which consists of three nucleotides, codes for a single amino acid. The deletion of an entire codon means that one amino acid will be absent from the protein, but the reading frame is not shifted.

The Most Commonly Occurring Mutation in People with Cystic Fibrosis