List the four conditions that are needed for adaptive evolution to occur. Provide one specific example of adaptive evolution
What will be an ideal response?
Answer: 1) There must be variation in a trait among individuals in a population; 2) the trait must be heritable; 3) the trait must increase the fitness of the individuals that possess this trait; and 4) if the environment changes, the trait may no longer be beneficial.
Insecticide resistance is a good example of adaptive evolution. Mosquitoes that are resistant to a specific insecticide have higher fitness in the presence of the insecticide compared to insects without the gene/mutation for resistance.
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