Which Of The Following Favors One Phenotypic Extreme Over Another Causing A Shift In The Phenotypic Mean?

Which Of The Following Favors One Phenotypic Extreme Over Another Causing A Shift In The Phenotypic Mean? Directional selection. The type of selection that favors phenotypes at one extreme of a trait’s range; causes a shift in a population’s phenotypic distribution; an extreme phenotype that was once rare in a population becomes more common; mean