Example: Corn + DNA from soil bacteria that is naturally immune to RoundUp herbicide + e.coli bacteria + soil bacteria that causes tumors in plants (which enables the plant’s cell wall to be breached) = RoundUp Ready Corn (one of several RoundUp Ready crops engineered by Monsanto).
Other examples of GMOs include strawberries and tomatoes injected with fish genes to protect the fruit from freezing, goats injected with spider genes to produce milk with proteins stronger than kevlar for use in industrial products, salmon that are genetically engineered with a growth hormone that allow them to keep growing larger, dairy cows injected with the genetically engineered hormone rBGH (also known as rBST) to increase milk production, and rice injected with human genes to produce pharmaceuticals.