Tony: These days, the word "clone" has appeared very often in the newspapers. Do you know its meaning?
Lana: I read a report. It said that Dr.-Ian Wilmut successfully cloned a lamb named Doily from a grown-up sheep .So people call him the "father" of Dolly.
Tony: In fact, the word "clone" means to produce the "same" animal by taking cells from a grown-up one. I think, if we know how to do cloning, we need only to keep a small number of sheep, cows or horses.
Lana: What's more, these days some people even want to clone humans. They have asked: Can we clone ourselves?
Tony: It seems interesting. But do you think it possible to do that?
Lana: No, impossible! First, I think we cannot clone a dead person, because the cells in his body are dead already.
Tony:Then can we clone a living person?
Lana:Again no! You might clone yourself one after another, but it is only a copy, not a real you.It is only something,not a“human”.
Tony:Well,you mean that it is not a real human.
Lana:True enough! l think Dr.Wilmut would most like to make better animals,and it has nothing to do with human cloning.