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A population of grey squirrels in the Tahoe basin has a coat color phenotype that is affected by
one gene with two alleles. Individuals with DD and Dd genotypes have light gray fur, while
those with the dd phenotype have almost black fur. The initial Genotype frequencies are given
below, Because of the heavy snow conditions, individuals with black fur have stood out to
predators more and suffered increased mortality this winter. This has resulted in selection on the
two phenotypes, indicated by the selection coefficients below. What is the frequency for the DD
genotype after selection?

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A population of grey squirrels in the Tahoe basin has a coat color ph.pdf

  • 1. A population of grey squirrels in the Tahoe basin has a coat color phenotype that is affected by one gene with two alleles. Individuals with DD and Dd genotypes have light gray fur, while those with the dd phenotype have almost black fur. The initial Genotype frequencies are given below, Because of the heavy snow conditions, individuals with black fur have stood out to predators more and suffered increased mortality this winter. This has resulted in selection on the two phenotypes, indicated by the selection coefficients below. What is the frequency for the DD genotype after selection?