ahlam1399
07-26-2016, 07:03 PM
Dolly, the first cloned mammal, had early arthritis and died young, raising concerns that clones age prematurely. But a study confirms the sheep's four sister clones are healthy and aging well.
أكثر... (http://www.npr.org/sections/health-shots/2016/07/26/487047575/clone-sisters-of-dolly-the-sheep-are-healthy-alive-and-kicking?utm_medium=RSS&utm_campaign=news)
أكثر... (http://www.npr.org/sections/health-shots/2016/07/26/487047575/clone-sisters-of-dolly-the-sheep-are-healthy-alive-and-kicking?utm_medium=RSS&utm_campaign=news)