TABLE 4

Combinations of s, t, and k values corresponding to heterozygote superiority (+) and heterozygote inferiority (−)

k < 0k > 1
MalesFemalesMalesFemales
s > 0, t > 0++
s < 0, t < 0++
s > 0, t < 0++
s < 0, t > 0++