DoyouknowaboutDolly,afamoussheep?She61.        (crea...

问题详情：

    Do you know about Dolly, a famous sheep? She 61.         (create) by cloning more than fifteen years ago in Scotland. Cloning is famous throughout 62.       world. It is a process used to make an animal that is 63.         (exact) like its parent. So far, scientists 64.        (clone) rabbits, sheep, cows, mice, pigs and some other animals.

    But what makes cloning possible? It’s DNA. There is DNA in most living things, 65.      

(include) human beings. Your DNA is the same in every part of your body. For example, your fingernails have the same DNA as your hair. You have your own DNA, 66.        is similar to your parents’, but not the same. However, Dolly’s DNA is the same as 67.        of the sheep she was cloned from.

    There’s no doubt that cloning can help save those animals in danger. It can also be 68.        

(benefit) to human beings. With its help, scientists are able to explore more ways to treat many serious diseases. However, cloning could be used in some ways to harm 69.        (social), too. So all governments should make laws 70.          (make) sure it can be used properly.

【回答】

created      tly   cloned   uding

h         ficial    ety    make

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