I read this through a couple of times, but it doesn't make it clear at all what cells were being used. Sinsull, were there any references with the article to link to the original? I'd be interested to know more.

Mrrzy, the mitochondrial DNA has no influence on the development of the organism, from what I remember, but remains within the mitochondria, so is a separarte issue. I take your point though about the 'clone' definition.

Noreen