Preimplantation genetic diagnosis (PGD) raises complex bioethical issues because, among other reasons, it is done in conjunction with IVF, there are potential risks, the possibility of error exists, and the procedure can result in one or more embryos being selected for implantation and others being rejected. Both the Case Studies in Biomedical Ethics text (Cases 11-1, 11-2, 11-5) and the Bioethics: Principles, Issues and Cases text (The Kingsburys, p. 555, Cases for Evaluation 1, 2 and 3, pp. 557-559) include several cases involving the use of PGD.Provide any background material about PGD that you find to be informative and interesting (this portion of the paper should be no more than 2-3 pages). Second, select two or three of the cases involving PGD from the texts and/or from outside sources. For each case, answer items (1) and (6) and at least two of the remaining items: 1. briefly describe the facts in the case; 2. discuss the ethical principles, issues, and/or conflicts that are presented in the case; 3. identify any value judgments that are included in the description of the case; 4. evaluate any ethical options or alternatives that are presented, or which may exist; 5. provide your thoughts/recommendations on how the situation should be (or was) resolved; and 6. discuss any similarities or differences between the cases you select from an ethical perspective.