ARE cloned animals normal and healthy? The claims and counterclaims that
followed a Japanese report on mouse clones last week show that experts are as
divided as ever on this crucial issue.
“Human cloning advocates are taking this superficial evidence and saying
clones are normal, we’re ready to go ahead,” says Rudolf Jaenisch, a mouse
cloner at Massachusetts Institute of Technology. “It’s a real disservice to the
field.”
But Robert Lanza of the Massachusetts-based company Advanced Cell Technology
(ACT) thinks such caution is delaying medical and agricultural advances that
could save millions of lives. “Claims that these data are superficial…
