BIOTECHNOLOGY:
Transgenic Lambs From Cloning Lab
Elizabeth Pennisi
The same lab that gave us Dolly, the first animal to be cloned from adult cells, has now combined genetic engineering with its cloning procedure, although using fetal cells in this case, to make lambs bearing foreign genes. The procedure could aid efforts to develop domestic animals with designer genomes that could be used, for example, to make human proteins for therapeutic use.