Ripped genes

2019-03-06 11:19:01

By Andy Coghlan CLONED animals often have short lives or are grossly oversized. Now a team from the Whitehead Institute for Biomedical Research in Cambridge, Massachusetts, has worked out why. They say genes in the stem cells the animals are made from get disrupted while they are growing in the lab. This discovery further underlines how dangerous it would be to clone humans. “It surely adds yet more evidence that there should be a universal moratorium against copying people,” says Ian Wilmut,