Molecular Genetics of Prokaryotes Problem Set
Problem 14: Effect of the absence of glucose
Correct!
An E. coli cell is grown in the absence of glucose. Which of the following will be true?
A.
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The level of cyclic AMP will be low.
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B.
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The CRP protein cannot bind to the DNA.
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C.
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If lactose is present, lac mRNA synthesis will occur at a high level.
Lactose is metabolized if glucose is absent.
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D.
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The cell will manufacture glucose by fixing carbon dioxide.
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E.
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The cell will be forced to carry out fermentation.
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Updated: July 15, 1999
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