Word: cloninger
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Dates: during 1990-1999
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The disadvantage of embryonic cloning is that you don't know what you are getting. With adult-cell cloning, you can wait to see how well an individual turns out before deciding whether to clone it. Cloning also has the potential to make genetic engineering more efficient. Once you produce...
In recent years, some scientists have speculated that the changes wrought by differentiation might be irreversible, in which case cloning an adult mammal would be biologically impossible. The birth of Dolly not only proves them wrong but also suggests that the difficulty scientists have had cloning adult cells may have...
At this point, Wilmut and his colleagues switched to a mainstream cloning technique known as nuclear transfer. First they removed the nucleus of an unfertilized egg, or oocyte, while leaving the surrounding cytoplasm intact. Then they placed the egg next to the nucleus of a quiescent donor cell and applied...
Nobody at Roslin or PPL is talking about cloning humans. Even if they were, their procedure is obviously not practical--not as long as dozens of surrogates need to be impregnated for each successful birth. And that is probably a good thing, because it gives the public time to digest...
It's a busy morning in the cloning laboratory of the big-city hospital. As always, the list of people seeking the lab's services is a long one--and, as always, it's a varied one. Over here are the Midwestern parents who have flown in specially to see...