Adapted from HHMI Introduction: A typical rock pocket mouse is about 170. 1 Fossils located in lower strata in a sedimentary rock were. Let's start by watching a video developed by HHMI Biointeractive about this phenomenon. Color variation over time in rock pocket mouse populations. In orer to investigate this mystery, we're going to investigate this case of pocket mice evolution using computational models. Students can also select one of their questions to try and answer with. Researchers noticed that rock pocket mice with a dark fur coat were more common on the dark lava flows, whereas the mice with light colored fur coat were more common on the light-colored sand. Natural Selection and the Rock Pocket Mouse HHMI BioInteractive Video biointeractive 232K subscribers Subscribe 1. Students questions can be recorded on the Owl Pellets Dissection worksheet. dark-colored mice that live on black lava rock.light-colored mice that live on sandy soil.Today there are now two forms of pocket mice: Then, a series of volcanic eruptions spewed a river of black lava more than 40 miles long that wove right through the middle of pocket-mouse territory. Lava flows created huge patches of dark rock among the surrounding light-colored sand. This kept the mice hidden from their predators (mainly owls). Indicate (using colors or labels) what the Rock Pocket Mouse population would look like in terms of fur color. The data is summarized in the table below. They recorded substrate color and coat-color frequencies for six locations. Displaying top 8 worksheets found for - Rock Pocket Mouse. Ancestral pocket mice had light-colored fur coats that blended in with the rocks and sandy soil that was prevalent in the region. 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. If the population is at Hardy-Weinberg equilibrium, what percentage of mice in the population are homozygous dominant, dark-colored mice p2 0.04 or 4 Explanation: q2 640/1000 0.64, so q 0.8. The American Southwest is a fantastic place to study rock pocket mice with different fur coat colors. In a population of 1,000 rock pocket mice, 360 have dark-colored fur.
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