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True or False
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1
Malaria has been implicated in the evolution of the Duffy blood group, a biochemical trait.
A)TRUE
B)FALSE
2
People with blood type O have a much smaller chance of getting duodenal and stomach ulcers.
A)TRUE
B)FALSE
3
Skin color is affected somewhat by sex and age; males are generally darker than females and skin darkens somewhat during adolescence among females.
A)TRUE
B)FALSE
4
The various physiologic and cultural adaptations employed by humans have allowed them to live in the widest variety of environments on earth.
A)TRUE
B)FALSE
5
The most widely accepted explanation for the evolution of light skin further from the equator focuses on the synthesis of vitamin D.
A)TRUE
B)FALSE
6
Sunburn has been suggested as a potential factor in natural selection in that dark skin, in areas of high ultraviolet radiation, could protect from the effects of sunburn.
A)TRUE
B)FALSE
7
Sickle cell anemia shows little if any connection between biology and culture.
A)TRUE
B)FALSE
8
Lactose intolerance is related to agricultural populations who did not practice dairy farming and thus, did not rely on milk in their diet.
A)TRUE
B)FALSE
9
Blood type A is apparently more susceptible to infantile diarrhea while type B seems to be more susceptible to smallpox.
A)TRUE
B)FALSE
10
A mutant allele, of the CCR 5 gene has been linked to resistance to HIV.
A)TRUE
B)FALSE





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