Sex Selection

Eligender®, an Ingenes signature service, is a procedure that allows patients to choose the sex of their baby.

The selection of the sex of a couple’s baby – also referred to as family balancing – is based on the analysis of genes located in the sex chromosomes (X and Y), whose presence or absence indicates the sex of the embryo.

It is mainly directed, but not restricted to following patient’s profiles:

To achieve family balance

Known genetic diseases related to gender

How it naturally works

The sex of an embryo is determined by the chromosomes carried by the sperm. A sperm can carry either the X or the Y chromosome. The woman’s egg only contributes the X chromosome to the fertilized embryo. The presence of the Y chromosome in the sperm will create a male baby (XY). Two X chromosomes – one X from the sperm and one X from the egg – will produce a girl baby (XX).

Eligender® technique

The technique begins with the biopsy of the embryos developed from an in vitro fertilization on day 3 or 5 of its development. From this, 1 to 15 cells are obtained in order to be analyzed by advanced molecular biology techniques.

The biopsy is carried out in the IVF laboratory by an expert biologist in assisted reproduction and does not affect the normal development of the embryo or its ability to implant.

After the genomic analysis of the cells obtained from the biopsy performed on each embryo, the results indicate which are the embryos of female sex (XX) and which of the male sex (XY). From these results the embryos from the desired sex will be chosen to be transferred.

Is Eligender for you?

Eligender® is the best option to achieve family balance. It is also indicated for couples with a history of genetic diseases linked to the sex chromosomes; in these cases it is necessary to be able to decide on gender to avoid diseases that are linked to the female sex or those linked to the male sex.