The genotype of a snake is the sum of its genetic assets. The phenotype is the expression of the genotype, with contributions from morphology (form and configuration), polygenic features, behavior, and other stimuli.
We and hundreds of customers and colleagues do occasionally find the need to house more than one corn snake per cage, but even when precautionary measures are employed, there is no guarantee that one or more cage mates will evade injury or death from feeding confusion by one or more snakes.