In 1997, when Dolly the sheep became the first mammal to be cloned from an adult sheep, cloning a human entered the realm of possibility.
His role in cloning Dolly the sheep, the world's first clone from an adult cell, led to an OBE in 1999 and he has been elected to five scientific academies worldwide.
His role at the Roslin Institute in cloning Dolly the sheep, the world's first clone from an adult cell, led to an OBE in 1999 and he has been elected a fellow of five scientific academies worldwide.
Even Dolly the sheep, who was produced by cloning via somatic nuclear cell transfer, benefited from a male imprinted genome.
The Roslin Institute's Dr. Ian Wilmut, who pioneered the technique that cloned Dolly from a single mammary cell from an adult sheep, said that while human cloning is theoretically possible, he saw no reason to do so.
Reproductive cloning, which created Dolly the sheep in 1997, involves transferring the nucleus of an adult cell into an egg, giving the resulting embryo a full set of genes without the normal sperm-meets-egg fertilisation step.
An ethical debate on cloning has been brewing ever since Dolly the sheep was produced in 1997.
However, the technique is so close to the "cloning" technology used to create Dolly the sheep that it will raise difficult ethical questions for doctors.
We will never know in the case of Dolly whether her condition is due to cloning or whether it is an unfortunate accident because sheep do develop arthritis.
The new study involves something similar to the cloning technique that led to the birth of Dolly, the famous cloned sheep that was born in July 1996.
The prospect of cloning a human moved from science fiction into the realm of possibility in 1997, when Dolly the sheep became the first mammal to be cloned from an adult.
应用推荐