Question

A eukaryotic gene, which does not normally undergo splicing, was exposed to benzopyrene, a known carcinogen and mutagen. Following exposure, the protein encoded by the gene was shorter than before exposure. Which of the following types of genetic rearrangements or mutations was likely introduced by the mutagen?a) silent mutationb) missense mutationc) nonsense mutationd) duplication

Answer 1

Nonsense mutation. These mutations result in a stop codon being read far too early causing subsequent proteins to be shorter