![]() ![]() ![]() ![]() ![]() ![]() ![]() First | Previous | Next | Last | | Index | Home Slide 13 of 63 Cloning of non-mammals was first accomplished in 1952. However, cloning of mammals proved much more difficult, with the first successful clone being the sheep, Dolly. Dolly died a premature death, probably due to the use of aged chromosomes in her nuclear transfer. Other mammal species followed rapidly, with mice and cows being cloned in 1998, and pigs in 2000. |
Last Modified July 6, 2004