91色情片

Scientists are puzzling over why a controversial fertility technique that
creates 鈥済enetically modified鈥� babies
(New Scientist, 12 May, p 7)
has produced fetuses with a serious genetic disorder. Two of 17 fetuses created by
Jacques Cohen and Jason Barritt at the Saint Barnabas Medical Center in New
Jersey had Turner鈥檚 syndrome and were aborted. The disorder affects girls, and
is caused by the total or partial loss of a sex chromosome. 鈥淭wo Turner鈥檚 out of
17 is pretty unusual,鈥� says Masoud Afnan, director of the Assisted Conception
Unit at Birmingham Women鈥檚 Hospital.