In an experiment examining adrenergic receptors, epinephrine alone was not able to trigger an increase

in cAMP, but when beta receptors were fused with animal cells, there were high levels of cAMP. What
was occurring?



a. activation of epinephrine.
b. protein kinase inhibition.
c. activation of adenylyl cyclase.
d. protein kinase amplification.
e. both activation of adenylyl cyclase and protein kinase amplification.


E

Biology & Microbiology

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A female fruit fly with the recessive mutant phenotype of white eyes and miniature wings is mated with a male possessing the wild-type phenotype of red eyes and normal wings

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The force that moves water through xylem is provided by:

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