Identifying the Type of Natural Selection Which graph best represents directional selection? Graph A Proportion of individuals Original population Population after selection Trait Value Graph B Proportion of individuals Original population Population after selection Trait Value Graph C Proportion of individuals Original population Population after selection Trait Value
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- Directional selection is a type of natural selection that favors one extreme phenotype over the mean or other extreme. This results in a shift in the population's trait distribution toward that extreme. Show more…
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The graph below is of directional selection. Which statement can be supported by the evidence shown in the graph? A Directional selection occurs when phenotypes at both extremes of the phenotypic distribution are selected against. B Directional selection occurs when one of two extreme phenotypes is selected against. C Directional selection occurs when one of two extreme phenotypes is selected for. D Directional selection occurs when phenotypes in the middle of the range are selected against. Directional Selection Original population
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Graph A below shows the range of phenotypic variation in a population. Graph B shows the effects of natural selection after several generations. Which mode of natural selection is occurring? Graph A Graph B directional selection random selection stabilizing selection disruptive selection
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In the graph, the dotted tan line represents the original population. The solid blue lines represents the next generation. What type of natural selection is illustrated by Graph C? Graph A Graph B Graph C stabilizing heterozygosity directional disruptive
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