A new fitness function and its application on a five locus model.

A new fitness function is proposed. It is a balance function which results from a combination of a turnover function defining the expression of favourable genetic factors and a cost function describing the costs of metabolism. A favourable genetic factor is defined as the heterozygote state at a locus. Five loci with two alleles each are considered. In computer simulations various kinds of this function are investigated. Their influence on the genetic composition of a population in equilibrium, the number and types of equilibria and the mean fitness are reported. Free recombination and tight linkage are considered.