The Mystery ofClones

Scientists havecloned goats,cats,cows,pigs and mice.Now it has been suggested by manycommentators and scientists that it might be ethically acceptable to cloneexisting

people in certaincases.One possibility is generating a replacement for a dying relative.All suchpossibilities,however,makes more and more people concerned that it would be

possible that theclone is subjected to expectations and limitations based on the family'sknowledge of the genetic"twin",so he or she would not be treated asan individual

with independentpersonality.For the reason that human personality is only partly determined bygenes,those assumptions might not be right.The clone of a shy person might

behave quitedifferently if he or she is brought up in a family with encouragingatmosphere.Clones of writers,scholars,scientists or athletes are very likely tochoose different

careers because ofchance event in early life.

Some researchershave suggested the idea that couples,in which one part is infertile,mightchoose to make a copy of one or the other partner. But the notion raises the

concerns that thechild who is a copy of just one of a couple might not treat naturally,and it isnot in the interests of the resulting kid.Moreover,the treatments of all known

types of infertilityare available nowadays;conventional therapies seem more ethnically acceptableto ordinary people's way of thinking,so the majority of population strongly

opposed to allowingcloned human embryos（胚胎）todevelop.

However,the positiveside of the cloning technology cannot be denied,for instance,cloning fromcultured cells will provide essential medical opportunities.Scientists aretrying

to grow anembryo,cloned from a single cell of a human being with goals to designtherapies for diseases which are currently untreatable.

Of course,people'spredictions about this new technology might be all wrong,because socialattitudes change and unexpected developments take place.Only time will tell.But

biomedicalresearchers who are dedicated to finding the potential of cloning have plentyto do.Maybe someday soon,a human will be cloned,and mankind will embark on a

scientific and moraljourney whose destination is not under his own control. Or maybe one day you willbe happy to have a clone of your own.

What is people'sconcern about cloning a child for infertile couples?

A.The child mightnot be treated kindly.

B.It's not for thegood of the resulting child.

C.The couples wouldnot accept the resulting child.

D.It would be wildto have a clone of one's own.