Individuals with one sickle cell allele and one normal hemoglobin allele are not affected by the malaria parasite because of 1) stabilizing selection 2) disruptive selection 3) neutral mutations 4) frequency-dependent selection 5) heterozygote advantage.
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Step 1: Individuals with one sickle cell allele and one normal hemoglobin allele are not affected by the malaria parasite because they have a heterozygote advantage. Show more…
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The recessive allele for sickle cell anemia is more prevalent in regions of Africa where malaria is prevalent than it is in regions where there is no malaria. This is due to: - Founder effect - Heterozygous advantage - Frequency-dependent selection - Bottleneck effect
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The continued presence of the allele that causes sickle cell anemia in areas where falciparum malaria is prevalent demonstrates which of the following phenomena? (a) inbreeding depression (b) frequency-dependent selection (c) heterozygote advantage (d) genetic drift (e) a genetic bottleneck
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