Researchers from Argentina has taken another step in the development of the science of cloning. In the last experiment they were able to change the set of the chromosomes of the animal. The authorship belongs to Jan Wilmut and Keith Campbell.
Cloned animal when performing certain manipulations changed your gender in the embryonic stage of development. Scientists give an example: a bull can be made to produce milk, Peresada him special genes.
The discovery is a major breakthrough, the experience gained can be used in animal husbandry. However, the attitudes towards cloning and genetic interventions is negative, scientists are subjected to constant criticism. Will continue to do experiments, time will tell.