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Mean population fitness in the case of Heterozygote Advantage

    Mean population fitness in the case of heterozygote advantage increases to a maximum at . The rate of change slows as the equilibrium is approached from above or below [derivative dW/dp = 0]. [The red circles show two trivial exceptions: if p = 0 or 1, there is no variation and an equilibriumcannot be reached].


Figure © 2019 Sætre & Ravinet; Text material © 2024 by Steven M. Carr