If a frameshift mutation causes a stop codon to be inserted into the DNA sequence, it will result in premature termination of protein synthesis. The addition of a stop codon disrupts the reading frame, altering the sequence of codons downstream from the mutation. As a result, the ribosome encounters the premature stop codon, leading to the termination of translation before a full-length protein is synthesized. This can have significant consequences as the truncated protein may lack important functional domains, leading to a non-functional or dysfunctional protein.
