Due to the many benefits of genetic alteration the production of such crops increase as the techniques become more an more useful and refined.

The most common types of GMOs (genetically modified organisms) are genetically modified crop plant species and include genetically modified maize, soybean, oilseed rape and cotton varieties. These crops have been genetically modified to provide resistance to certain insect pests and tolerance to specific herbicides.
Some fruits have been genetically modified to delay ripening. Some fish, such as salmon, have been genetically modified to become more resistant to cold. Genetically modified micro-organisms are used in the production of many vitamins, flavorings and additives.