Suppose an experimenter becomes proficient with a technique that allows her to move DNA sequences wil prokaryotic genome. If she moves the promoter for the lac operon to the region between the beta galactosidase (lacz) gene and the permease (lacy) gene, which of the following would be likely? A) RNA polymerase will no longer transcribe permease. B) The cell will continue to metabolize but more slowly. C) The operon will no longer be inducible. D) Beta galactosidase will not be produced. E) The three genes will be expressed normally.

D

Explanation:

In the absence of lactose, the lac repressor binds tightly to the operator, which in turn inhibits transcription by RNA polymerase. However, when lactose is present beta-galactosidase will not be produced. So since the promoter( the binding site) is still present making lactose present in a new site, then it will obstruct the production of beta-galactosidase.

weathering - colorado river carves land in arizona to form the grand canyon. cracks form in a sandstone wall surrounding a house. a marble statue near the science museum is changing color due to rainfall

erosion - after a rainstorm, soil and rock piees litter the roadways. the sand dunes in the sahara desert are changing shape.

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