Sex-ratio bias induced by mutation.

  title={Sex-ratio bias induced by mutation.},
  author={Minjae Kim and Hyeong-Chai Jeong and Seung Ki Baek},
  journal={Physical review. E},
  volume={99 2-1},
A question in evolutionary biology is why the number of males is approximately equal to that of females in many species, and Fisher's theory of equal investment answers that it is the evolutionarily stable state. The Fisherian mechanism can be given a concrete form by a genetic model based on the following assumptions: (1) Males and females mate at random. (2) An allele acts on the father to determine the expected progeny sex ratio. (3) The offspring inherits the allele from either side of the… 
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DANIELA F. SIEFF is a graduate student in human ecology at the University of California, Davis (Davis, Calif. 956I6, U.S.A.). Born in I965, she received a B.A. from Oxford University in I987 and an