Bacterial colonization of the ileum of mice has been demonstrated to trigger
a. a fatal immune response.
b. the expression of genes for glucose uptake and lipid absorption in the mouse.
c. vitamin production in the mouse.
d. exfoliation of the mucosal lining.
Answer: B
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The energy to separate fragments during agarose gel electrophoresis is supplied by
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In which of the following ways is proteobacterial photosynthesis different from plant photosynthesis?
a. Proteobacterial photosynthesis uses a different type of chlorophyll. b. Proteobacterial photosynthesis does not produce oxygen. c. Proteobacterial photosynthesis uses water as an electron donor. d. Proteobacterial photosynthesis uses a different type of chlorophyll and does not produce oxygen e. Proteobacterial photosynthesis occurs in the dark.
How are B-cell receptors different from antibodies?
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At sea level, what percentage of the air we breathe is oxygen?
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