The Google Drive folder is set as “View Only” to save a copy of a document in this folder to your Google Drive, open that document, then select File → “Make a copy.” These documents can be copied, modified, and distributed online following the Terms of Use listed in the “Details” section below, including crediting BioInteractive. Not all downloadable documents for the resource may be available in this format. Remember that 'fitness' is defined by an organism's ability to survive and produce. Explain why a rock pocket mouse's color influences its overall fitness. Students review key concepts and mechanisms of evolution. evolution of coat color phenotypes in different rock pocket mouse populations. Activity: Color Variation over Time in Rock Pocket Mouse Populations. To end the lesson and allow students to synthesize all they have learned, students answer the following analysis questions (on data sheet): 1. The rock pocket mouse is a living example of Darwin’s process of natural selection. The “Resource Google Folder” link directs to a Google Drive folder of resource documents in the Google Docs format. PDF Rock Pocket Mouse Worksheet Answer Key. They then compare amino acid sequences to identify variations associated with different coat colors. They then use a genetic code chart, to determine the amino acids encoded by a sequence of the Mc1r gene in different mouse populations. Scientists have a good understanding of what causes fur color in individual mice. The rock pocket mouse has a sandy and dark color within the population due to gene mutation proving the idea of Variation. They also come in different fur colors, from tan to black. They make a living in the intense heat of the desert. Be sure to provide an appropriate title for the graph, and titles and labels for the x-and y-axes. Activity Student Handout Developing an Explanation for Mouse Fur Color INTRODUCTION Rock pocket mice are interesting in many ways. The activity begins with students reading a magazine article and watching the film. Create a bar graph based on the data that shows the numbers of the mice at locations A and B through time. Students analyze genetic sequence data and draw conclusions about the evolution of coat-color phenotypes in the rock pocket mouse. This activity supports concepts covered in the film Natural Selection and Adaptation.
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