Patterns of non-uniform usage of synonymous codons vary across genes in an organism and between species across all domains of life. This codon usage bias (CUB) is due to a combination of non-adaptive (e. g. https://www.ivoryjinelle.com/top-offer-Dragon-Ball-Super-Goku-Vegeta-Super-Ball-LG-Stylo-6-Clear-Case-p103191-quick-deal/