The ________ gene is responsible for removing many of the drugs introduced into the human body
A) HAR-1
B) CYP2D6
C) ASPM
D) FOXP2
E) BRCA1
B
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An animal's metabolic rate is defined by its overall rate of (select all correct choices):
A. energy use. B. glycolysis. C. anaerobic respiration. D. aerobic respiration. E. activity.
In the tuberculin skin test, what would be the most likely reason why a positive test would NOT necessarily indicate an infection in progress in a patient who was born and grew up in the United States?
A. False-positives occur all the time. This might simply be an example of that. B. The TB skin test is a measure of reactivation of memory T cells. The memory T cells would be formed either during an active infection or would be remnants of a prior infection that may be cleared. Since the memory of the response persists, the test still shows positive, even though the patient is cleared of actual infection. C. Each person in the United States receives the BCG tuberculosis vaccine. This is an attenuated mycobacterium vaccine. The response to this vaccine makes us positive for the TB skin test, even though we may not have actually had a TB infection at any point in our lives. D. A positive TB skin test ALWAYS indicates a current, active infection.
The Punnett square is a useful tool for
A) determining the rate of segregation of alleles. B) calculating how many mutations occur during DNA replication. C) determining which genes or traits assort independently during gamete formation. D) predicting the ratios of possible genotypes of a particular combination of alleles. E) predicting the level of crossing over that will occur during meiosis.
What products of light reactions of photosynthesis are used in the Calvin cycle?
A. glucose and oxygen B. carbon dioxide and water C. oxygen and protons D. ATP and NADPH E. ADP and NADP