A water concentration gradient is influenced by the number of solute molecules present on both sides

of the membrane.



Indicate whether the statement is true or false.


T

Biology & Microbiology

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The premise of personalized medicine is that:

A. two people can develop the same condition for different reasons. B. two people with the same disease likely share similar genotypes. C. two people with the same disease likely share common risk factors. D. two people with the same disease are likely to respond similarly to similar medications. E. two people with the same disease are highly unlikely to respond to similar medications.

Biology & Microbiology

You are testing a new chemotherapy drug that blocks a kinase in the cytoplasm that helps carry signals to the nucleus causing the cell to divide. If you expose cells to the drug at the same time you administer a hormone that should cause the cell to divide, which of the following steps would be blocked?

_____ Receptor activation _____ Signal transduction _____ Activation of transcription factors _____ Cell division

Biology & Microbiology

The monomer of tubulin:

a. Has 3 subunits in it b. Is a monomer with a molecular weight of 42 kDa c. Is a dimer with a molecular weight of 220 kDa d. Is a heterodimer with a total molecular weight of 110 kDa e. None of the above

Biology & Microbiology

Assume that the transmission of antibiotic-producing bacteria that live as mutualists with leaf cutter ants is strictly vertical; i.e., bacteria are only transmitted from queens to their offspring

What would you expect the topology of a phylogeny for the bacteria to look like relative to the phylogeny of their ant partners? a. The topologies should not correspond more than would be expected under a random model. b. The topologies should closely correspond to one another. c. The topologies should correspond less than would be expected under a random model. d. Deep nodes will correspond, but not nodes that are located toward the tips of the tree.

Biology & Microbiology