A married couple has a son with sickle-cell disease. If this couple has more children, what is the likelihood that a daughter will inherit sickle-cell disease?
A. A daughter would be equally likely to inherit sickle-cell disease as compared to a son.
B. A daughter would be less likely to inherit sickle-cell disease than a son.
C. A daughter cannot inherit sickle-cell disease, while a son can.
D. A daughter would be more likely to inherit sickle-cell disease than a son.
Answer: A
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Tropical climates are warmer than temperate climates because
A. temperate climates have more mountains and thus more snow causing the landmasses to warm slower. B. tropical climates have more vegetation and thus can absorb more heat. C. temperate climates are closer to the poles and the polar surfaces cause a reduction in heat gain. D. tropical climates receive the sun's rays at an almost perpendicular angle; since Earth is a sphere, the temperate climates receive the sun's rays at a much steeper incidence thus spreading the radiation over a broader area. E. tropical climates receive the sun's rays at a much steeper incidence thus spreading the radiation over a broader area and causing the tropics to be warmer while the temperate climates receive the sun's rays at an almost perpendicular angle, which causes some areas to be warm and other areas to be cold.
Biomagnification occurs with chemicals that
A. dissolve in only acidic solvents. B. dissolve in water. C. are not readily degraded and dissolve in fat. D. are not readily degraded and dissolve in water. E. dissolve in only basic solvents.
During the light-dependent reactions, due to electron transport, the thylakoid space becomes
A. the site of ATP synthesis. B. more acidic than the stroma. C. the site where the Calvin cycle occurs D. the site of NADPH production.
Which of the following diseases is NOT associated with bacteria that form endospores?
A) tetanus B) anthrax C) gangrene D) botulism E) toxic shock syndrome