Stem Cell Breakthrough Uses No Embryos

<p>By Malcolm Ritter, Nov 20, 2007 (Associated Press)- Scientists have made ordinary human skin cells take on the chameleon-like powers of embryonic stem cells, a startling breakthrough that might someday deliver the medical payoffs of embryo cloning without the controversy.</p> <p>Laboratory teams on two continents report success in a pair of landmark papers released Tuesday. It’s a neck-and-neck finish to a race that made headlines five months ago, when scientists announced that the feat had been accomplished in mice…</p>