The four sheep cloned from Dolly’s cell line did not suffer the same bad health as their sister, Dolly. Sheep live an average of 10 to 12 years, and these four — Daisy, Diana, Debbie, and ...

The death of Dolly the sheep, the first animal to be cloned from an adult cell, has sparked renewed fears over the safety of cloning techniques. The Roslin Institute announced the decision was ...

How is it that your body with all of its specialized organs developed from a single cell? Scientists are exploring how gene expression patterns and their timing regulate cell differentiation.

View Full Profile. Learn about our Editorial Policies. Dolly died of an infection at 7 years old, which is considered young for a sheep. She was reported to show signs of severe arthritis in her knees ...

PPL Therapeutics (Edinburgh, UK), the company that, along with the Roslin Institute, cloned Dolly the sheep, announced on March 14 that it had created the first pigs cloned from adult cells.

The finding “is important . . . because Dolly was under the magnifying glass for a very long time,” Dietrich Egli, a developmental cell biologist at Columbia University who was not involved in the ...