GMO is the abbreviated form of the genetically modified organism.
An organism may be an animal, plant, or microbe whose DNA has been altered using genetically engineered techniques.
In reproductive cloning, a nucleus is extracted from a cell of the organism that is required to be cloned and inserted into the host's enucleated cytoplasm.
GMOs exist in various fields such as medicines, agriculture, plants, animals, etc.
For instance, Bt cotton is a genetically modified cotton that contains the Bacillus thuringiensis making the cotton resistant to insects, and other pests.