In which case dominance is not an autonomous feature of a gene or the product that it has information for?

Dominance is not an autonomous feature of a gene or the product that it has information for. It depends as much on the gene product and the production of a particular phenotype from this product as it does on the particular phenotype that we choose to examine, in case more than one phenotype is influenced by the same gene. E.g., B gene in Pea.