> [GE corn] The bacterial [[genes]] that are meant to be toxic to insects can be allergenic to people. Barbara McClintock's work with corn showed that a change in the plants' environment causes them to shift their [[genes]] around, sort of equivalent to internal hybridization. When something new is added to the genome, it changes the results of the rearrangement, unpredictably. Since seeds always contain toxins, anyway, a new allergen probably isn't too important, and the traditional alkali processing of corn might take care of it.