The phrase “designer babies” refers to genetic interventions into pre-implantation embryos in the attempt to influence the traits the resulting children will have. At present, this is not possible, but many people are horrified by the mere thought that parents might want to choose their children’s genes, especially for non-disease traits. I want to argue that the objections are usually not well articulated, and that even when they are, it’s far from obvious that such interventions would be wrong.
Steinbock, Bonnie, "Designer Babies: Choosing our Children's Genes" (2006). Philosophy Faculty Scholarship. 1.