Genetically modified organisms (GMOs) are organisms whose genetic material has been altered using genetic engineering. This summary will discuss the disadvantages of GMOs. GMOs have the potential to harm other organisms if the genes used are poisonous. They could also cross-pollinate with traditional plants, integrating modified genes into organic crops. Additionally, GMOs may lead to the spread of resistant "super weeds" and pests. Overall, there is concern that GMOs could damage the environment and human health in unforeseen ways.