Huntington's Disease

In "Genetics and Reproductive Risk: Can having children be immoral," L.M Purdy discusses the notion that the recent advances in reproductive technology impose a moral obligation on individuals to prevent the birth of "affected" babies that will not have a "minimally satisfying life." There are, however, several assumptions that the author makes in reaching the conclusion that having "affected" children is immoral.
The author makes the claim that people with Huntington's disease are unlikely to live a minimally satisfying life. It is known however, that Huntington's disease does not take any affect until 40-50 years of age.…