Directional, disruptive, and stabilizing are all types of ______, in which certain phenotypes are favored over others.Multiple choice question.migrationnatural selectionmutationgenetic drift
Question
Directional, disruptive, and stabilizing are all types of ______, in which certain phenotypes are favored over others.Multiple choice question.migrationnatural selectionmutationgenetic drift
Solution
The answer is natural selection. These are all types of natural selection, a process in evolution where certain traits become more or less common in a population due to their impact on the survival or reproduction of their bearers.
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Directional selection occurs when one extreme phenotype is favored over other phenotypes, causing the allele frequency to shift over time in the direction of that phenotype.
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Disruptive selection occurs when extreme values for a trait are favored over intermediate values, causing the variance of the trait to increase and potentially leading to a bimodal distribution.
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Stabilizing selection occurs when intermediate phenotypes are favored over extreme phenotypes, reducing the amount of variation in the trait.
Similar Questions
Selection for one extreme phenotype in a population would be considered _______ selection.Multiple choice question.directionalstabilizingbalancingdisruptive
When the intermediate phenotype of a trait is being selected for and the extreme phenotypes are being selected against, the population is probably undergoingMultiple choice question.disruptive selection.directional selection.sexual selection.stabilizing selection.
Disruptive selection is a mechanism of natural selection thatMultiple choice question.favors two or more extreme phenotypes in a population.favors the intermediate phenotype in a population.favors only one extreme phenotype in a population.is seldom seen in natural populations.
A(n) ______ is a feature that provides a selective advantage to an organism because it improves its ability to survive and reproduce.Multiple choice question.adaptationgene flowartificial driftdispersal
Which type of selection can occur when individuals with phenotypes at the upper and lower ends of the curve have higher fitness than individuals near the middle?A.Directional selectionB.Stabilizing selectionC.Natural selectionD.Disruptive selection
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