Stages of Genetic Engineering
The gene that creates the desired characteristic is selected. This gene will be different depending on the organism and the effect you are hoping to achieve.
This gene is cut from the DNA, using enzymes to do so, and then the gene is isolated.
The gene is inserted into the DNA of another organism, first removing a section of the organism's DNA so that the gene can be inserted in its place.
The organism reproduces, whether it is asexually or through breeding, and then there are several of these organisms with the desired characteristic. The process of genetic engineering is complete.