A GMO, or genetically modified organism, is a living being whose DNA has been altered using genetic engineering techniques. This process allows scientists to introduce new traits or characteristics that do not occur naturally in the species. Common examples of GMOs include certain crops, like Bt corn and Roundup Ready soybeans, which have been modified for pest resistance or herbicide tolerance. GMOs are often used in agriculture to improve crop yields and reduce the need for chemical pesticides. While they can offer benefits such as increased food production and enhanced nutritional content, there are ongoing debates about their safety, environmental impact, and labeling requirements in various countries.