Cloning - The process of producing similar populations of genetically identical individuals that occurs in nature when organisms such as bacteria, insects or plants reproduce asexually.
Genetic Engineering - The modification of an organisms genetic composition by artificial means, often involving the transfer of specific traits, or genes, from one organism into a plant or animal of an entirely different species.
Gene Therapy - An experimental technique that uses genes to treat or prevent diseases. In the future, this technique may allow doctors tom treat a disorder by inserting a gene into a patient's cells instead of using drugs or surgery.