"Inherited Traits Blend Like Mixed Paint"
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Blending inheritance, the view Mendel's results overturned, wrongly predicted that offspring traits average their parents' traits and that a lost trait cannot resurface.
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Blending inheritance would predict pale violet F1 flowers from a violet-by-white cross; Mendel found the F1 flowers fully violet.
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A trait that looks blended, such as human skin tone, usually reflects many separate genes acting together, not one factor.