Dr. Jeffrey Steinberg has already helped thousands of couples choose their child's gender at his fertility institutes in Manhattan and Los Angeles.
Within six months, he says, the clinic will offer a new service: allowing couples to select the physical traits of their babies. Steinberg says he cannot promise that people will get their selections, but claims he can dramatically increase the probability.
Ok, so sounds as parents are being outright giving those options, as in building the DNA for them. But what they are really doing:
According to Steinberg, the technology behind genetic screening has progressed to the point where parents can almost custom-design their babies.
Is genetic screening screening, same as they did for gender. So they have a batch of fertilized eggs using eggs and sperm the parents requested (most often the parent's themselves), and probably let the eggs divide/cleave/whatever the medical term is, take one of the cells and test it to see what genes it has. Then tell the parents what DNA soup options they have and ask them to pick which one(s) they wanted used. While there are certainly other reasons one can object, I object to the misleading reporting If you have sperm and eggs in a patch both coming from red-haired blue-eyed people, there ain't not choice for hair and eye colour as those people won't have varied genes on those two traits to play with, if I remember my genetics correctly, both being recessive genes. Also IIRC this is already done this with people with genetic diseases. They test the fertilized eggs for having those genetic markers.