In Drosophila gene for white eye colour is also responsible for depigmentation of body parts. It is an example of
The ability of a gene to have a multiple phenotypic effects is known as pleiotrophy and the gene is called Pleiotropic gene and the inheritance is called Pleiotropic inheritance. In Drosophila, a gene is responsible in controlling the colour of the eye and depigmentation of body parts. It is a pleiotropic gene.
So, the correct option is ‘Pleiotropic gene’.