1. Polyploidism—Extra Genes
Typically, cells contain two sets of chromosomes and are referred to as diploid. They inherit one set from each of their parents. However, when cells mutate, they can become polyploid and have more than two sets of genetic markers.
Polyploid pot plants sometimes produce more THC and bigger yields, but none have yet been bred to do this on a regular basis. I recommend leaving experimentation with mutating pot plants to expert breeders and growing healthy non-mutant varieties for personal use.