A genetically modified organism (GMO) is a living organism—such as a plant, animal, or microorganism—whose genetic material has been deliberately altered using biotechnology. This modification typically involves adding, removing, or changing specific genes to produce desired traits, such as increased resistance to pests, improved nutritional content, or the ability to produce useful substances, such as drugs to treat disease. GMOs are widely used in agriculture, research, and medicine, and they illustrate how changes at the DNA level can affect an organism’s characteristics and function..
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