21.   They are thought to exist nowhere else in the world, and suffer from a hereditary disease that causes abnormal muscle movements when the nervous system is suddenly stimulated.

22.   When it first made headlines about a decade ago, gene therapy seemed the answer to the prayers of thousands of people affected by hereditary diseases.

23.   Agutter is a carrier of the hereditary disease cystic fibrosis, which she said might one day benefit from the technology that produced Dolly.

24.   Couples undergoing in vitro fertilization already may have their embryos screened for serious hereditary diseases.

25.   Cystic fibrosis is the most common fatal hereditary disease among Caucasians in the United States.

26.   In ulcerous colitis, a hereditary disease, victims are unable to keep food in their bodies, leaving them drained of energy.

27.   It helps prevent couples from passing on hereditary diseases such as Thalassemia, which is common in the Mediterranean region.

28.   It said sex identification would be allowed only with the approval of medical and public health institutions above the city level for the sake of preventing hereditary diseases.

29.   Rau voiced his concerns over the testing of human embryos for hereditary diseases before being implanted in the womb, a practice allowed in some European countries.

30.   Some hereditary diseases are caused by errors in these signals and the associated transport mechanisms, the Nobel Assembly said in announcing the prize.