In order for a cell to respond to the signaling molecule epinephrine, it must ____
a. have ion channels
b. have a lipid bilayer that allows the response to occur
c. have receptors exposed on the inner plasma membrane surface
d. have receptors exposed on the plasma membrane surface
e. have nuclear membrane receptors
D
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A newborn is identified as having sickle-cell anemia. While both parents are healthy, a screening of both parents will most likely reveal:
A. both mother and father are carriers of a mutant ? chain gene. B. only one parent has a mutant ? chain gene since mutation is dominant. C. both mother and father are carriers of a mutant ? chain gene. D. only one parent has a mutant ? chain gene since mutation is dominant. E. both parents carry a mutant hemoglobin gene and are highly susceptible to malaria.
One species' DNA differs from other in its_____
a. sugars c. base sequence b. phosphates d. all of these
Hemoglobin A1c can be measured in blood tests to track the progress of which disease?
A) liver disease B) kidney disease C) heart disease D) diabetes E) anorexia
True/False: If you graph the response of a drug versus its concentration, a safe drug would have a large space between the curves for the toxic dose and the effective dose of the drug.
What will be an ideal response?