题目
题目
单项选择题

Your colleague is delighted because in her lab today she successfully had E.coli take up a gene that produces a human protein, and the bacteria are now producing the human protein. She reports that this occurred this using DNA placed in the environment of the E.coli, and the bacteria took up the DNA without the use of a viral vector. She excitedly describes this as natural transformation. Is she correct?

选项
A.Yes, because E.coli is now capable a producing a new product this is natural transformation.
B.Yes, because E.coli now has a new gene from another source in its chromosome this is natural transformation.
C.No, because the newly incorporated gene is from a different species, this is artificial transformation.
D.No, because this occurred in the laboratory, the process is transduction, not transformation.
E.No, because this happened in the laboratory without the use of a viral vector this is artificial transformation.
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思路分析
The scenario involves a colleague reporting that E. coli in a lab took up a human gene and began producing human protein, allegedly through DNA exposure in the environment without a viral vector, and she calls this natural transformation. Option 1: 'Yes, because E.coli is now capable a producing a new product this is natural transformation.' This is flawed because producing a new product alone does not define natural transformation, and the context specifies laboratory conditions and DNA uptake without a viral vector,......Login to view full explanation

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