Cloned sheep Dolly died after six years

摘要

Dolly's premature death is a solemn reminder that cloning is a complex process, still not yet fully understood by cloning researchers. Scientists should investigate subtleties and monitor cloned animals' lives until death, so as to properly understand the scope and consequences of any inherent problems. Other cloned animals after Dolly include: Cumulina the cloned mouse (named for the "cumulus cell" from which she was made), followed by cloned cows, goats, pigs, rabbits, and one small kitten calledCarbon Copy. The world of cloning has been dealt a major setback with the recent announcement of Dolly's death. The world-famous sheep cloned was put to sleep after a veterinary examination confirmed that she was suffering from a progressive lung infecti