BBC新闻英语阅读
引导语:今天小编给大家整理的是BBC的.一个新闻,关于“克隆羊多利姐妹健康 哈利波特舞台剧上映”的,希望大家喜欢。
Researchers in the British city of Nottingham say thecloned siblings of Dolly the sheep are in good healthraising hopes that the process doesn't effect physicalwellbeing. The four cloned sisters have just passedtheir ninth birthdays. Dolly who had to be put downin 2003 had aged prematurely because shedeveloped osteoarthritis at a relatively young is our science correspondent Jonathan Amos.
Dolly's birth was a sensation, the first genetic copy of a mammal made from a cell takenfrom an adult sheep. It was how it is a way of developing new medical therapies or to saveendangered species. But cloning is very inefficient. Most attempts fail and even in Dolly'scase, she had a lung disease and painful joints. Scientists wondered if that was because hergenetic clock had not been reset properly. That possibility has now been tested in four sheepcloned from the same cells as Dolly. They are her genetic sisters called Debby, Denis, Diannaand Daisy. They are now nine, older than she was but don't show the same degenerative re from Nottingham University says this finding renews hope in the promise of cloning butconcedes the process is still too inefficient.
And so there still remains an ethical and welfare concern with cloning. And what we have to dois to reduce the incidents of theses losses and the severity of these losses before I think thetechnique will be widely accepted by the general public.
The scientists who report their studies in the journey Nature Communications say it's beenfascinating to work with animal copies. Some do develop quite different personalities. But theyare virtually impossible to tell apart.
That report from Jonathan Amos.
It seems to have been around for quite a while that this weekend after two months of previews,we will see the gala opening in London of Harry Potter and the Cursed Child. It's described asthe eighth Potter story. But the critics have been allowed in ahead of the official opening andthe reviews are now in the newspapers. So what's it about? A question for our artscorrespondent Vincent Dowd.
It's a five-hour epic in two parts so I can't say much about it. And of course I'm not reallysupposed to say that much about it anyway. There is a lot in it basically set 19 years after theend of the novels or the films. Harry played now by Jamie Parker is 37.
What have the critics made of it all so far?
They have loved it. I think without exception. I'm not sure I can remember reviews like thissince the producers are in New York. Just one or two quotes, The Times, "It's the real deal livein front of you, so much better than any film could be".
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