rewrite these information to be like your own world..
Factors such as the timing of conception, sexual position usedand types of food eaten while pregnant were said by some to affectthe sex of a baby. It was not until the 1970s, however, thatscientific methods began to be developed for selectinggender.
One example of such technology is the Ericsson method, which wasdeveloped by Ronald Ericsson in 1975 and continues to be used atclinics today. In the Ericsson method, sperm are placed in a testtube filled with viscous fluid. Since male-producing Y-chromosomesperm swim faster than female-producing X-chromosome sperm, theycan be separated from each other based on their positions in thetest tube and then used for insemination. The Ericsson method isinexpensive, but its success rate is debated, with detractorssaying it has no more than a 50% chance of producing the desiredgender.
Another technique, flow cytometry, began as a means of selectingthe sex of farm animals. It was applied to humans beginning in1995. That method, used by the company MicroSort, a division of theGenetics and IVF Institute, sorts X and Y sperm by staining themwith fluorescent dye. Because of differences in the amount of DNAcontained in the two types of sperm, the dye glows more brightly onX sperm than on Y sperm, allowing equipment to separate them basedon their level of fluorescence. Sperm of the desired type is thenused to impregnate the woman through artificial insemination.
The MicroSort procedure costs several thousand dollars, andaccording to the company, is accurate roughly 75% of the time inselecting boys and around 90% of the time in selecting girls. TheFood and Drug Administration is currently conducting a study ofbabies born through use of the method to determine whether theyhave an unusual number of birth defects.
third technique uses in-vitro fertilization (IVF), mixing parents'sperm and eggs to create embryos in laboratories. In a processknown as preimplantation genetic diagnosis (PGD), cells are thentaken from the embryos to determine gender, and those of thedesired gender are implanted in the woman's uterus. In-vitrofertilization is already used to help infertile couples havechildren, and laboratories use PGD to screen for genetic diseasesin accordance with that purpose.
rewrite these information to be like your own world..
Factors such as the timing of conception, sexual position usedand types of food eaten while pregnant were said by some to affectthe sex of a baby. It was not until the 1970s, however, thatscientific methods began to be developed for selectinggender.
One example of such technology is the Ericsson method, which wasdeveloped by Ronald Ericsson in 1975 and continues to be used atclinics today. In the Ericsson method, sperm are placed in a testtube filled with viscous fluid. Since male-producing Y-chromosomesperm swim faster than female-producing X-chromosome sperm, theycan be separated from each other based on their positions in thetest tube and then used for insemination. The Ericsson method isinexpensive, but its success rate is debated, with detractorssaying it has no more than a 50% chance of producing the desiredgender.
Another technique, flow cytometry, began as a means of selectingthe sex of farm animals. It was applied to humans beginning in1995. That method, used by the company MicroSort, a division of theGenetics and IVF Institute, sorts X and Y sperm by staining themwith fluorescent dye. Because of differences in the amount of DNAcontained in the two types of sperm, the dye glows more brightly onX sperm than on Y sperm, allowing equipment to separate them basedon their level of fluorescence. Sperm of the desired type is thenused to impregnate the woman through artificial insemination.
The MicroSort procedure costs several thousand dollars, andaccording to the company, is accurate roughly 75% of the time inselecting boys and around 90% of the time in selecting girls. TheFood and Drug Administration is currently conducting a study ofbabies born through use of the method to determine whether theyhave an unusual number of birth defects.
third technique uses in-vitro fertilization (IVF), mixing parents'sperm and eggs to create embryos in laboratories. In a processknown as preimplantation genetic diagnosis (PGD), cells are thentaken from the embryos to determine gender, and those of thedesired gender are implanted in the woman's uterus. In-vitrofertilization is already used to help infertile couples havechildren, and laboratories use PGD to screen for genetic diseasesin accordance with that purpose.
