Today, many foods are genetically engineered (GE). GE foods are an example of how science is trying to ＿＿（41）＿＿ nature. Scientists use a special process to put new genetic information into a plant. ＿＿（42）＿＿ , the plant's DNA, or genetic code, changes. For instance, to protect a plant from a certain virus, scien tists can put a gene into the plant to make it more ＿＿（43）＿＿ to the virus. Such development seems positive. Why then has there b een a worldwide negative reaction to GE foods?