Polly and Molly the sheep Since Dolly, other sheep have since been cloned from adult cells, as have cats, rabbits, horses, donkeys, pigs, goats and cattle. However, cloning has existed in nature since the dawn of life. In 1997, two ewes were born at Roslin which were the first mammals to have been successfully cloned from an adult somatic cell (like Dolly) and to be transgenic at the same time. They have also created many transgenic animals - one at a time. Scientists used cells into which a new gene had been inserted so that the animals produced a therapeutic protein in their blood. Polly and Molly the sheep Since Dolly, other sheep have since been cloned from adult cells, as have cats, rabbits, horses, donkeys, pigs, goats and cattle. How about Molly, Holly, Folly and Golly?
The first study to review the long-term health outcomes of cloning, the authors found no evidence of late-onset, non-communicable diseases other than some minor examples of osteoarthritis and concluded "We could find no evidence, therefore, of a detrimental long-term effect of cloning by SCNT on the health of aged offspring among our cohort. The creation of Polly and Molly built on the somatic nuclear transfer experiments that led to the cloning of Dolly the Sheep.
Polly and Molly (Born 1997 - 2000), two ewes, were the first mammals to have been successfully cloned from an adult somatic cell and to be transgenic animals at the same time.
Two other sheep, Megan and Morag, had also been cloned from embryonic cells grown in the lab at The Roslin Institute in 1995 and six other sheep, cloned from embryonic and foetal cells, were born at Roslin at the same time as Dolly.
The gene chosen was a therapeutic protein to demonstrate the potential of such recombinant DNA technology combined with animal cloning. In 1997, two ewes were born at Roslin which were the first mammals to have been successfully cloned from an adult somatic cell (like Dolly) and to be transgenic at the same time. This is not to be confused with Dolly the Sheep, the first animal to be successfully cloned from an adult somatic cell where there wasn’t modification carried out on the adult donor nucleus. Following this, Polly and Molly were the first mammals to be simultaneously cloned and transgenic. Dolly the sheep, as the first mammal to be cloned from an adult cell, is by far the world's most famous clone.
In 1997, two ewes were born at Roslin which were the first mammals to have been successfully cloned from an adult somatic cell (like Dolly) and to be transgenic at the same time. "After cloning was successfully demonstrated through the production of Dolly, many other large mammals were cloned, including pigs,Cloning may have uses in preserving endangered species and may become a viable tool for reviving In July 2016, four identical clones of Dolly (Daisy, Debbie, Dianna, and Denise) were alive and healthy at nine years old.The first successful cloning of a In January 2019, scientists in China reported the creation of five identical