Select all that applyWhich statements are true of negative frequency-dependent selection but are not true of positive frequency-dependent selection?Multiple select question.Genetic diversity decreases in the population.The rare genotype is favored.As the rare genotype increases in abundance, its selective advantage decreases.As the rare genotype increases in abundance, its selective advantage increases.Need help? Review these concept resources.
Question
Select all that applyWhich statements are true of negative frequency-dependent selection but are not true of positive frequency-dependent selection?Multiple select question.Genetic diversity decreases in the population.The rare genotype is favored.As the rare genotype increases in abundance, its selective advantage decreases.As the rare genotype increases in abundance, its selective advantage increases.Need help? Review these concept resources.
Solution
The statements that are true of negative frequency-dependent selection but are not true of positive frequency-dependent selection are:
- The rare genotype is favored.
- As the rare genotype increases in abundance, its selective advantage decreases.
Explanation:
Negative frequency-dependent selection is a type of natural selection in which the fitness of a phenotype decreases as it becomes more common. This means that the rare genotype is favored because it is less common, which is not the case in positive frequency-dependent selection where the common genotype is favored.
As the rare genotype increases in abundance, its selective advantage decreases in negative frequency-dependent selection. This is because as it becomes more common, it loses its advantage of rarity. In positive frequency-dependent selection, the opposite is true - as the common genotype increases in abundance, its selective advantage increases.
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