Some of the first GMOs – corn and cotton plants that have been genetically modified to fend off insects – are running into problems. Bugs have become resistant to them because they've been overused.
genetically engineered food
Scientists have re-engineered photosynthesis, a foundation of life on Earth, creating genetically modified plants that grow faster and bigger. They hope it leads to bigger harvests of food.
Cottonseed is full of protein but toxic to humans and most animals. The USDA has approved a genetically engineered cotton with edible seeds. They could eventually feed chickens, fish — or even people.