Currently many women develop one unwanted problem during pregnancy - ectopic pregnancy. Ectopic signifies 'out of place'; quite often this health disorder can lead to unwilled result. What is the reason for ectopic pregnancy? The main cause is that a fertilized egg starts growing outside the womb. Read more…
There're many married couples who want to have a child of a certain sex. But the query if it is feasible to program the sex of a kid beforehand is rather vital.
Men play a decisive role in identifying of the baby's sex. X-chromosome exists in every ovule and may be in one pair with Y-chromosome in diploid cells. Both chromosomes (X and Y) are included in male sex cells. That's why sex chromosome of a male determines sex of a kid. If ovules would be fertilized by the same cells (which is impracticable), simply girls would be born. Though, history sees many families having kids only of a single sex. The fertility of boys and girls is approximately identical but still there is a tendency to superiority of boys. For people who would like to distract their notice from all those tiresome speculations there's escorts kiev.
When the semen permeates into the ovicell, the process of approaching of nuclei starts. Nuclei grow in size and that is why there starts the procedure of originating chromosomes from the heterochromatin which is a raw material. Chromosomes are enveloped by a slender membrane that lacerates in two cells at the proper time. The nuclei of both cells approximate each other and merge into a single nucleus. As a result of nuclei merger ovicell changes into a germ with new genetic material.
It was thought in the years of old that boys appear from the left testis, and girls - from another one. Various acrobatic positions were advised for couples that longed to originate a baby of a definite sex. Read more…
The usual success rate in egg donation procedure varies around 50%. Still there are features that may boost the possibility of success. The first one is the professionalism of the medical crew. The second is the quality of the donored eggs. If the donors are healthy the success chances increases greatly. And the final point is the usage of the best technologies. Just a small amount facilities offer all the three pros. One of them is AVA-Peter, a Russian-Finnish fertility center in Saint Petersburg. The following describes process they execute. This made them able to reach a 70% success rate in egg donation in first half of 2009.
