Genetically Modified Organisms (GMOs) are organisms whose DNA has been altered using genetic engineering techniques to introduce desirable traits that do not occur naturally in the species. In agriculture, one of the primary goals of genetic modification is to produce resistant crop varieties.
GMO crops can be engineered to resist specific pests, diseases, herbicides, or environmental stresses such as drought and salinity. For example, Bt cotton contains a gene from the bacterium Bacillus thuringiensis that produces a protein toxic to certain insect pests, reducing the need for chemical pesticides. Herbicide-resistant crops allow farmers to control weeds without damaging the crop itself.
These resistant varieties benefit farmers by reducing crop losses, lowering input costs (fewer pesticides and herbicides needed), and improving yield reliability. The entire purpose of developing GMO food products is to improve crop performance, not to make crops more susceptible to diseases, lower in quality, or lower in yield. Those outcomes would represent failures of crop development, not benefits.
Exam tip: GMO technology in agriculture is primarily associated with introducing resistance (to pests, diseases, herbicides, or environmental stress) and improving nutritional content or shelf life. When a question frames GMOs as beneficial to farmers, look for traits that increase productivity and reduce losses.