[Methods of sex selection. A new method for preventing genetic diseases]

Determining sex of offspring has been a subject of intense interest for the public and professional community. Although methods of selecting sex before concepts are not entirely reliable, couples could satisfy their wishes for the size and composition of their family and the children might benefit by being wanted. On the other hand, the ability to selectively separate X from Y chromosome-bearing spermatozoa and use the X spermatozoa to preferentially produce female offspring; could be reduce, or may even eliminate, the probability of conceiving affected males of X-linked diseases.