Preimplantation genetic diagnosis is allowing people to select the traits of their unborn children. It is an interesting Bioethical issue and highlighted in the following article. Check it out.
http://www.nytimes.com/2014/02/04/health/ethics-questions-arise-as-genetic-testing-of-embryos-increases.html?_r=0
http://www.nytimes.com/2014/02/04/health/ethics-questions-arise-as-genetic-testing-of-embryos-increases.html?_r=0