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In the table below, predict (yes or no) whether or not the E. coli lac operon will be transcriptionally active in the presence or absence of glucose or lactose as indicated and respond
Lactose Glucose Lac expression?
No YesYes YesYes No
to questions "a" and "b."
a. Explain each of your answers in terms of the molecular mechanisms that are known to underlie the regulation of the lac operon.
b. Which mechanism is considered to be negative control and which is considered to be positive control? Explain.
Drug resistance occurs. Assume you inoculated 100 cells into 100 mlnutrient broth. You then inoculated 100 cells of the same speciesinto 200 ml nutrient broth. After incubation for 24 hr, you shouldhave
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The genetic information in cells consists of the sequential arrangement of:
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