As much as ________ of the bacteria isolated from human feces belong to the genus Bacteroides.
A. 30%
B. 0.1%
C. 2.0%
D. 90%
Answer: A
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What happens to an enzyme after it has catalyzed a reaction?
a. it is sent to the proteasome for degradation b. it is inactivated by phosphorylation c. it is inactivated by dephosphorylation d. it releases the cofactor to get a new one ready for catalysis e. it returns to its original state
Briefly explain how the body's first line of defense against pathogens works
What will be an ideal response?
Choose the defining characteristic of all arteries
A) They only carry blood back to the heart. B) They only carry blood away from the heart. C) They only carry deoxygenated blood. D) They only carry oxygenated blood.
A genetic test to detect predisposition to cancer would likely examine the APC gene for involvement in which type(s) of cancer?
A) colorectal only B) lung and breast C) lung only D) lung and prostate