The relatively high percentage of individuals in West Africa who are heterozygous for the sickle cell trait is an example of _____

a. natural selection
b. genetic drift
c. spontaneous mutational spread
d. heterozygote disadvantage

e. the founder effect


a

Biology & Microbiology

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Endotoxins must be eliminated from biomanufactured products because they ________

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If two species have incompatible mating structures, then which reproductive isolation mechanism prevents them from

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If the allele for inflated pea pods (I) is dominant to the allele for constricted pods (i), then the cross Ii xii is expected to produce

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Biology & Microbiology