If you didn’t know any better, you might think that Star, Snuppy, CC and AND

游客2023-08-14 18

问题 If you didn’t know any better, you might think that Star, Snuppy, CC and ANDi were just a bunch of interesting names. You’d only be half right These creative names【C1】______ belong to a pig, a dog, a cat and a monkey that were among the first clones of their species.
You’re likely already familiar with Dolly—the sheep that achieved near【C2】______ status as the first mammal to be cloned successfully using adult animal cells. But Dolly is not alone. The world’s first clone—a tadpole—was actually created as early as in 1952. And at least a dozen different species have been cloned since: everything from the common cow to the【C3】______ guar, a type of wild ox.
Animal cloning has come a long way since that first tadpole more than 50 years ago. The U.S. Food and Drug Administration’s (FDA) declaration in early 2008 that food products【C4】______ from the clones of cows, pigs and goats are safe for human consumption【C5】______ an already growing interest in the process.
Cloning may have【C6】______ uses besides its ability to help farmers【C7】______ breed quality burgers and bacon. Other potential uses【C8】______ the preservation of species, biomedical research, drug and organ production and even commercial ventures.
It seems that finding out exactly how many cloned animals have been produced is almost as difficult as producing them in the first place. There’s no official【C9】______ of clones, and laboratories aren’t required to report every single tadpole or mouse they create. But armed with a bit of knowledge concerning animal cloning and its【C10】______ it’s likely to narrow down the contestants to a possible field.
A) inclusive B) derived C) applications D) actually
E) additional F) intensified G) visualized H) celebrity
I) include J) typically K) compromise L) endangered
M) registry N) duplicates O) consistently [br] 【C6】

选项

答案 E

解析空格在名词uses之前，作其定语。下一句提到克隆技术可能用于保存物种、生物医学研究等，可知这一技术除帮农民生产出汉堡包和熏猪肉外，还有其他用途。additional符合句意。

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