Suppose that the osmotic response element is in a promoter joined to the coding region of luciferase,

and this composite gene is in cultured renal medulla cells. The cells should glow when they are placed
in a medium that is ____ to the cells.



a. hyperosmotic
b. hypoosmotic
c. hypoosmotic or isoosmotic
d. isotoosmotic
e. hyperosmotic or isotoosmotic


A

Biology & Microbiology

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Nocardia spp. form branched filaments that extend along the agar surface, which are called _____ hyphae

a. surface b. substrate c. aerial d. topical

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The opossum and kangaroos are examples of living members of which of the following mammalian

lineages?

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The "endosymbiont theory" states that eukaryotic cells work together to form a multicellular organism.

a. true b. false

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