克隆观点英语作文关于克隆观点的英语作文.doc

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1、克隆观点英语作文关于克隆观点的英语作文写一篇关于克隆的文章，要有反对克隆的原因和赞同克隆的原因，还要有自己的观点Westhusins experience with cloning animals leaves him upset by all this talk of human cloning.Inthree years of work on the Missy project, using hundreds upon hundreds of dogs eggs, the A&;M team has produced only a dozen or so embryos (胚胎) carr

2、ying Missys DNA.Nonehave survived the transfer to a surrogate (xx的) mother.Thewastage of eggs and the many spontaneously aborted fetuses (胎) may be acceptable when youre dealing with cats or bulls, he argues, but not with humans.“Cloningis incredibly inefficient, and also dangerous,” he says.Even so

3、, dog cloning is a mercial opportunity, with a nice research payoff.Eversince Dolly the sheep was cloned in1997, Westhusins phone has been ringing with people calling in hopes of duplicating their cats and dogs, cattle and horses.“Alot of people want to clone pets, especially if the price is right,”

4、 says Westhusin.Costis no obstacle for Missys mysterious billionaire owner; hes put up $3.7 million so far to fund A&;Ms research.Contrary to some media reports, Missy is not dead.Theowner wants a twin to carry on Missys fine qualities after she does die.Theprototype is, by all accounts, athletic, g

5、ood-natured and supersmart.Missysmaster does not expect an exact copy of her.Heknows her clone may not have her temperament.Ina statement of purpose, Missys owner and the A&;M team say they are “both looking forward to studying the ways that her clones differ from Missy.”Besides cloning a great dog,

6、 the project may contribute insight into the old question of nature vs.nurture.It could also lead to the cloning of special rescue dogs and many endangered animals.However, Westhusin is cautious about his work.He knows that even if he gets a dog pregnant, the offspring, should they survive, will face the problems shown at birth by other cloned animals: abnormalities like immature lungs and heart and weight problems “Why would you ever want to clone humans,” Westhusin asks, &;when were not even close to getting it worked out in animals yet?第 3 页 共 3 页