Multiple Choice
Anopheles mosquitoes, which carry the malaria parasite, cannot live above elevations of 1800 metres. In addition, oxygen availability decreases with higher altitude. Consider a hypothetical human population that is adapted to life on the slopes of Mt. Kilimanjaro in Tanzania, a country in equatorial Africa. Mt. Kilimanjaro's base is about 793 metres above sea level and its peak is 5895 metres above sea level. If the incidence of the sickle-cell allele in the population is plotted against altitude (feet above sea level) , which of the following distributions is most likely, assuming little migration of people up or down the mountain?
A) 
B) 
C) 
D) 
Correct Answer:

Verified
Correct Answer:
Verified
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