Gender selection (GS) review.
Gender or sex selection allows a couple to choose or alter the odds of having a baby of a particular sex. Two primary motivations for gender selection are: medical disorders with a genetic basis, “medical” gender selection, or when there is already one gender and the other is desired “family balancing” gender selection. Over the last 40 years improvements in embryo biopsy and genetic analysis have now made it possible to determine sex with near 100% accuracy.
“Medical” gender selection.
Individuals may carry what are known as sex linked diseases on their X or Y chromosomes, ex., includes muscular dystrophy, hemophilia, fragile X syndrome. The ability to determine sex prior to pregnancy can prevent birth or termination of a child with a potentially serious medical condition.
“Family Balancing “ gender selection.
Families may have one or more children of a particular sex and desire a child of the opposite sex. The American Society of Reproductive Medicine along with the Society for Assisted Reproductive Technology has endorsed the concept of “family balancing” gender selection.
Methods for gender selection.
In vitro fertilization with pre-embryo genetic screening (PGS) is a technique that is approximately 95% accurate in determining genetic sex. With this technique a patient would go through in vitro fertilization, several cells are removed from a day five embryo and these cells are analyzed for chromosomal makeup. Embryos with the desired sex chromosomes can then be transferred to uterus. This technique is the only one appropriate for medical gender selection. This technique also offers information regarding the other twenty-two pairs of non sex chromosomes – potentially preventing other unanticipated genetic abnormalities. When used in the context of in vitro fertilization it also allows for high pregnancy rates without the transfer of multiple embryos – essentially eliminating the risk of a multiple pregnancy with its increased inherent risks for the babies and mom click for pricing information.