Although the Ester¹ allele confers a selective advantage to mosquitoes exposed to DDT on the coast of France, carriers of Ester¹ in inland populations are more likely to be caught by spiders and other predators. This is an example of A) positive selection. B) antagonistic pleiotropy. C) genetic drift. D) average excess of fitness. E) none of the above

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Quizplus · Accepted Answer

This is an example of antagonistic pleiotropy, where a single gene has multiple effects (pleiotropy) that are beneficial in one context (resistance to DDT) but detrimental in another (increased predation risk).

Although the Ester1 Allele Confers a Selective Advantage to Mosquitoes

Although the Ester¹ Allele Confers a Selective Advantage to Mosquitoes