-Midrange forms of a trait can be adaptive while extreme forms of a trait are selected against. Which graph or graphs in the accompanying figure represent this selection phenomenon?
A)A only
B)B only
C)C only
D)A and B
E)A and C

Question

-Midrange forms of a trait can be adaptive while extreme forms of a trait are selected against. Which graph or graphs in the accompanying figure represent this selection phenomenon?
A)A only 
B)B only 
C)C only 
D)A and B 
E)A and C

Quizplus · Accepted Answer

The description refers to stabilizing selection, where intermediate phenotypes are favored over extreme ones. Graph B typically represents stabilizing selection, showing a peak at the midrange.

-Midrange Forms of a Trait Can Be Adaptive While Extreme