If a cell mistakenly transcribed and translated a gene’s intron, the most likely consequence would be:
Additional amino acids would be inserted into the chain.
Introns are non-coding regions of a gene that are typically spliced out during RNA processing. If they are erroneously included in the final mRNA and translated, it would result in a protein that contains extra amino acids corresponding to the sequence of the intron. This can lead to a nonfunctional or malfunctioning protein due to the incorrect sequence.