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BMAT考試：科學知識與應(yīng)用練習

Insulin is a protein involved in the regulation ofhuman blood glucose levels.

Genetic engineering can be used to allow thelarge-scale production of human insulin.

Which statement describes the process of geneticengineering in this case?

A Taking insulin from a human and inserting it intothe DNA of a bacterium. As the bacterium reproduces, it makes large quantitiesof insulin DNA that can be used to treat human diabetes.

B Taking insulin from a human and inserting it intothe DNA of a bacterium. As the bacterium reproduces, it makes large quantitiesof insulin that can be used to treat human diabetes.

C Taking the insulin gene from a human chromosomeand inserting it into the DNA of a bacterium. As the bacterium reproduces, itmakes large quantities of insulin DNA that can be used to treat human diabetes.

D Taking the insulin gene from a human chromosomeand inserting it into the DNA of a bacterium. As the bacterium reproduces, itmakes large quantities of insulin that can be used to treat human diabetes.

E Taking the insulin gene from a human chromosomeand replacing it in another human chromosome in the same human, so that it willwork better to produce large quantities of insulin.

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Answer: D

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