Pre-implantation Genetic Diagnosis - Research Paper Example

It is important to make a distinction between pre-implantation genetic diagnosis and preimplantation genetic screening. The diagnosis procedure refers specifically to the situation whereby one or both of the genetic parents of a child in question actually has one or more numerous types of serious genetic abnormalities. If this is the case, the pre-implantation genetic diagnosis procedure can be performed on a particular embryo to determine if it also carries that specific genetic abnormality as well.

Pre-implantation genetic screening, on the other hand, is a procedure that is performed when embryos from genetic parents are thought to be normal from a chromosomal perspective, but the genetic parents are screened for aneuploidy (Ashcroft, 2013). The purpose of the pre-implantation genetic diagnosis procedure is, to a large degree, to ensure that only unaffected embryos end up being transferred to the uterus for implantation. This is a viable alternative to the current diagnostic procedures that are typically run after natural conception has occurred.

Examples of this include amniocentesis or chorionic villus sampling. These tests are often followed by difficult decisions having to be made if abnormal results are achieved, such as deciding to terminate the pregnancy. This issue is quite important today as pre-implantation genetic diagnosis remains the only option that is currently available for parents who are genetically predisposed to certain serious genetic diseases to avoid giving birth to a child that will have the same disease. This must take place before the embryo being transferred, or lasting psychological and emotional harm may occur (Dayal, 2010). The procedure itself has become a realistic and medically sound way of preventing serious genetic diseases that are heredity, even though other functions of the procedure itself have entered into the questionable ethical territory. As we begin to discuss the motivations behind a couple or individual desiring to undergo a pre-implantation genetic diagnosis, it is helpful to understand the history of the procedure.