The statement is true.
In 2002, approximately one-third of the corn grown in the United States was genetically engineered. Genetically engineered (GE) or genetically modified organisms (GMOs) are organisms whose genetic material has been altered using biotechnology techniques. The cultivation of genetically engineered crops, including corn, has been widespread in the United States since their introduction in the 1990s. However, it is worth noting that the specific percentage of genetically engineered corn may vary from year to year.