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Question: A quorum sensing response in a hypothetical organism (let's call it Vibrio imaginarium) results in upregulation of one gene (qsg1) and downregulation of another (qsg2). Assume that preliminary experiments have been performed and these experiments have shown that homoserine lactone functions as the autoinducer. You are interested in how the quorum sensing response is regulated in this organism and you have isolated a mutant strain that is no longer able to upregulate qsg1 and downregulate qsg2 when treated with homoserine lactone. You find that this mutant strain fails to produce a single protein that is present in the wildtype strain due to a frameshift mutation within a particular gene (qsg3). Based on the various mechanisms of gene regulation discussed in class, propose a mechanism for how qsg1 and qsg2 expression is regulated. Describe at the molecular level all elements and allosteric interactions that your proposed mechanism requires. Your answer should be detailed but concise.
Explain bioremediation in detail. Write an essay on the bioremediation.
A female rabbit with hemophilia, rickets and a tail was mated to a male rabbit that did not have hemophilia or rickets but lacked a tail.
Drosophilafemales homozygous for the third chromosomal genes pink-eye and ebony body were crossed with males homozygous for 2nd chromosomal gene apterous wings.
The level of protein structure that is stabilized primarily by non covalent interactions in the side chains within a single polypeptide chain is refered to as its:
Discuss the differences between a gymnosperm's secondary growth and an angiosperm's secondary growth? how could you tell the stems apart?
In this example, for every base designated Q, there is twice that amount of base R; for every base Z, there is twice that amount of base S. If molecule contains 33.33 percent R, what percentage of Z would you expect.
What would occur to the preferred habitat of your plant (Red Maple) in case of partial water drainage of the Mer bleue marsh (such as the water level would go down half the depth of the marsh).
Understand the section on spermatogenesis. Do you think the age of the man is as important in determining the chance of chromosomal abnormalities? Why or why not give reasons.
The process of diffusing blood under pressure is termed as ______; this takes place in the ______ and eliminates all the small molecules from blood, the process of ______ then follows.
Estimate the sequence of hexapeptide on the basis of the following data. When the sequence is not known, a comma separates the amino acids.
If you wanted 10mL of a 1mM nitrophenol solution and you have on hand a 50mM nitrophenol solution, how would you make it. If you wanted 100mL of a 0.1M acetic acid solution, how much 17.4M acetic acid and how much water do you need to add to make t..
what happen if any did the UMP have on the activity. An investigation was set up to observe the effect of varying concentrations of the substrate galactose(S) on the rate of reaction of the kinase,v, with and without an added artificial nucleoside ..
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