51.   So an excess of this version appears to be crucial for producing the inherited disease and maybe the non-inherited form as well, Duff said.

52.   The inherited disease is called epidermolysis bullosa.

53.   The technique might lead to a cure someday for hemophilia and some other inherited diseases in people.

54.   The scramble by biotech companies to patent genes is damaging efforts to introduce powerful new diagnostic tools to help people at risk from inherited disease, a study says.