On the optimal sex ratio.

  title={On the optimal sex ratio.},
  author={Samuel Karlin and Sabin Lessard},
  journal={Proceedings of the National Academy of Sciences of the United States of America},
  volume={80 19},
The equilibrium structures for various multiallele sex-determining genetic models of panmictic populations with sex expression depending on the genotypes of either the zygote or a parent are described. Even-sex-ratio equilibrium surfaces can exist apart from equilibrium points having coincident male and female allelic frequency sets. The latter (symmetric) equilibrium states entail biased sex ratios. A stable symmetric equilibrium and an even-sex-ratio equilibrium segregating the same alleles… CONTINUE READING

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