T he laking of the Fittest Natural Selection and Adaptation LESSON STUDENT HANDOUT PART 2: APPLYING HARDY-WEINBERG TO ROCK POCKET MOUSE FIELD DATA Or. Nachman and his colleagues collected rock pocket mice across 35 klometers included both dark, rocky lava outcrops and light, rocky, granite areas. They recorded frequencies for each location. Each site was separated from any of the others by at least eight kilometers trapped a total of 225 mice. Their data are summarized below of the Arizona Sonoran Desert, which substrate color and coat-color The researchers Field Data Summary Collecting Site Substrate Color Number of Mice Light Light Dark Dark Dark 85 45 34 43 Source of data: Hoekstra, Hopi E, Kristen E.Drumm, and Michael W. Nachman. “Ecological Genetics of Adaptive Color Polymorphism in Pocket Mice: Geoaraphic Variatinn in Stn g equation and data from the table above, determine the num Dd genotypes on the light, rocky, granite substrate. Frequency of mice with the dd genotype on light-colored substrate Frequency of mice with the DD genotype on light-colored substrate Frequency of mice with the Dd genotype on light-colored substrate Using the Hardy-Weinberg equation and data from the table above, determine the number of mice with the DD and d genotypes on the dark, rocky lava substrate. Frequency of mice with the dd genotype on dark-colored substrate Frequency of mice with the DD genotype on dark-colored substrate Frequency of mice with the Dd genotype on dark-colored substrate Allele and Phenotype Frequencles in Rock Pocket Mouse Populations HMI AAD HUGHES MEDICAL INSTITUTE www.Biolnteractive.org Page 4 of 6