A model of phenotype evolution incorporating mutation,
recombination is investigated.
The model consists of a partial differential equation
for population density with respect to a continuous variable representing phenotype diversity.
Mutation is modeled by diffusion,
selection is modeled by differential phenotype fitness,
and genetic recombination is modeled by an averaging
It is proved that if the recombination process is suffciently weak,
then there is a
unique globally asymptotically stable attractor.