cirrhosis most commonly effects what group of people
What will be an ideal response?
alcoholics
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Transposable elements are considered to be "selfish" genes because they _____
A) have multiple promoters B) require multiple RNA polymerases for transcription C) reproduce without increasing the fitness of the host D) do not produce mRNA
In the process of transcription, promoters are specific sequences of ________ that are recognized by ________
A) DNA / DNA polymerase B) RNA / DNA polymerase C) DNA / sigma factors D) RNA / ribosomes
Which of the following structures help to increase the surface area for nutrient absorption in the small intestines?
A. villi and microvilli B. villi C. microvilli D. tight junctions E. villi, microvilli, and tight junctions
You wish to determine the cellular location of a protein but unfortunately it is not particularly antigenic (i.e., it can't develop a strong antibody response). How could you solve this problem?
A. Create a fusion protein with an epitope tag that can be visualized by incubation with fluorescently tagged antibody to the epitope. B. Create a fusion protein with an epitope tag that is fluorescent without the addition of antibodies. C. Create a fusion with green fluorescent protein (GFP). The fusion protein will fluoresce when streptavidin is added. D. Express the protein as a fusion with biotin. The addition of GFP will cause fluorescence. E. None of these methods will work.