GMOs are organisms that have been genetically modified using recombinant DNA technology to introduce or alter characteristics. They can be used to produce hormones and antibiotics, make crops resistant to herbicides and pests, and improve industrial enzymes. However, there are concerns about potential allergic reactions and changes in market values. GMOs have widespread applications in research, pharmaceuticals, agriculture, and producing herbicide-resistant or pesticide-producing food crops. Overall, the document argues that GMOs help address world hunger by producing more nutritious food.