A G-protein coupled receptor associates with a G protein that contains how many subunits?
A. 4
B. 0
C. 1
D. 2
E. 3
Answer: E
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Average human males are most likely to be attracted to women with a waist to hip ratio of 0.72. Women with this waist to hip ratio are also the most fertile. By being attracted to women with a waist to hip ratio, a male is increasing his chances of having children and thus improve his ____ .
A. longevity B. gene flow C. fitness D. allele frequency
Biosensors can be used to measure the concentration of substances in many different environments.
Answer the following statement true (T) or false (F)
In a liver cell detoxifying alcohol and some other poisons, the enzymes of the peroxisome remove hydrogen from these molecules and _____
A) combine the hydrogen with water molecules to generate hydrogen peroxide B) use the hydrogen to break down hydrogen peroxide C) transfer the hydrogen to the mitochondria D) transfer the hydrogen to oxygen molecules to generate hydrogen peroxide
The methylene blue reductase test is not specific for coliforms.
A) True B) False