![]() ![]() It eats mainly plant seeds and makes small burrows in soil close to or under rocks to evade owls, its main predator. Some people suggest that evolution is a process that occurs in other animals but not humans. Found mainly in rocky outcrops in the deserts of the southwestern United States and Mexico, the rock pocket mouse is medium-sized (length 18 cm, weight 1218g) and nocturnal. Which fur color has the greatest advantage on each substrate?ħ. How can the Hardy-Weinberg equation be used to show that a population is evolving?Ħ. How does this percentage compare to the percentages observed using the Hardy-Weinberg equation?ĥ. How many of the offspring are expected to be DD_ Dd _ dd_ Show a punnett square of two heterozygous mice crossed. (Show work!) p 2 + 2pq + q 2 = 1 and p + q = 1Ĥ. Use the Hardy-Weinberg equation, complete the table. Calculate the frequency of light colored mice and dark colored mice found on dark substrates.ģ. This activity is based on the study of fur color evolution in rock pocket mouse populations shown in the film The Making of the Fittest: Natural. Calculate the frequency of light colored mice and dark colored mice found on light substrates.įrequency = number of mice of one color / total number of mice on that substrateįrequency of light colored mice = _ | Frequence of dark colored mice _Ģ. In this activity, students collect and analyze evidence for each of the major conditions for evolution by natural selection to develop an explanation for how populations change over time. The data is summarized in the table below.ġ. ![]() They recorded substrate color and coat-color frequencies for six locations. Nachman and his colleagues collected rock pocket mice across 35 kilometers of Arizona Sonoran Desert, which include both dark, rocky lava patches and light, rocky granite areas.
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