Dolly's arthritis dents faith in cloning

The discovery of arthritis in the left hind leg of Dolly the cloned sheep has dented public confidence in the viability of therapeutic animal cloning, the technology that aims to make up the shortfall in human organ donations by harvesting organs from genetically modified animals.

PPL Therapeutics, the commercial partner of the research team that cloned Dolly, saw its share price tumble 16% on the day after the announcement of Dolly's condition amid fears that the sheep is old before her time and that organs from cloned animals …