Question

For a genetic system that displays heterosis (heterozygote advantage), give the changes in frequency of both A₁ and A₂ (Δp and Δq) if:

p = 0.3, q = 0.7, s₁ = 0.4 and s₂ = 0.7

(in this case I deviate from Futuyma’s notation; s₁ is the selection coefficient for A₁ homozygotes and s₂ is the selection coefficient for A₂ homozygotes. These are listed as s and t in the text)