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【简答题】

What are some of the common problems for cloned animals? Cloned animals tend to have serious ( ) and shorter life.

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【简答题】What does Dr. Ritchie plan to do? Dr. Ritchie plans to ( ) .

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【简答题】Who is Dr. Bill Ritchie? Dr. Bill Ritchie is a member of ( ) .

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【简答题】How many Scottish Wildcats are left in the world today? It is estimated that ( ) .

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【简答题】How could an immature egg from tissue recovered during spaying of domestic cats develop into a mature egg suitable for cloning? The development would be carried out ( ) .

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【简答题】Why do many animals in zoos fail to breed? Many animals in zoos fail to breed because ( ) and because ( ) .

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【单选题】Dr. Bill Ritchie plans to clone the Scottish Wildcat because ________.

A.

heis a member of the team that cloned Dolly

B.

theanimal is endangered

C.

theanimal remains in existence

D.

theanimal is extinct

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