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Suppose that you start with a lysogenic strain of E. coli. In this strain, a mutation arises that results in the intracellular repressor level becoming twice as high as it normally would be. What effect would this have on the ability of the lysogen to be induced?
Discuss what you would require to know to answer the following question: of all proteins that exist on earth at this time, what fraction of them have a known structure?
A patient has esophageal cancer and should have a feeding tube inserted. The nurse tells the patient that the tube will be inserted surgically into the duodenum. The wife asks why the tube will not be inserted into the stomach directly.
Synthesis of fatty acids requires the movement of citrate out of the mitochondria. This occurs under conditions of high levels of acetyl CoA which is required to stimulate the activity of:
Discuss the difference between inorganic and organic molecules? Do some research since cannot be answered in one sentence.
Suppose that a series of compounds has been found in Neurospora . Compounds A-F appear to be members of an enzyme pathway.
Create an experiment in which you will test the effect of an acidic fluid on enzymatic activity. To complete this assignment, it may be useful for you to review the Scientific Method Tutorial.
Assume your text provides an interesting explanation for the "dormitory effect", in which women living or sometimes working together tend to synchronize their menstrual cycles.
In order to perform a fluorescence experiment, you need to seed a 4-well chamber slide with 60,000 cells in each well. To prepare for the cell count, you transferred twenty uL of cell suspension into thirty uL of trypan blue.
Suppose that the length of ten base pairs of DNA found in one turn of the helix is 34 A, what is the average length of a human chromosome in centimeters?
Estimate the isoelectric point for the peptide: glu-asp-arg-asn-ser-asp-glu-his-lys-asp Discuss any assumptions made; exact numerical accuracy is not important - approximations may be used.
Biology Quiz: Using information at the CDC Influenza website, What is the most prevalent strain of influenza that is circulating in the 2012-13 flu season (Select one)?
Contrary to the legend camels do not store water in their humps, that actually consist of a large fat deposit. How can these fat deposits serve as a source of water.
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