Favors both extremes against intermediate phenotypes, potentially leading to speciation Bimodal distribution emerges. Can drive sympatric speciation if extremes become reproductively isolated.

Favors common phenotypes against rare variants, potentially eliminating diversity

Favors both extremes against intermediate phenotypes, potentially leading to speciation

Favors one extreme against intermediate phenotypes, potentially shifting the mean

Favors intermediate phenotypes against both extremes, potentially reducing variation

Variations in Populations

AP Biology· difficulty 3/5

Disruptive selection

A
$Favors common phenotypes against rare variants, potentially eliminating diversity$
B
$Favors both extremes against intermediate phenotypes, potentially leading to speciation$
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C
$Favors one extreme against intermediate phenotypes, potentially shifting the mean$
D
$Favors intermediate phenotypes against both extremes, potentially reducing variation$

Explanation

Bimodal distribution emerges. Can drive sympatric speciation if extremes become reproductively isolated.

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