rock pocket mouse video questions answers

ROCK POCKET MOUSE VIDEO QUESTIONS ANSWERS SKIN

ROCK POCKET MOUSE VIDEO QUESTIONS ANSWERS SKIN

This gene encodes a protein called the melanocortin 1 receptor (MC1R) and is found embedded in the cell membranes of melanocytes, specialized pigment-producing skin cells. The products of several genes, including the Mcir gene, control the synthesis of these pigments. Their analyses led to the discovery of a mutation in the Mcir gene that is involved in coat color determination THE MCIR GENE Two pigments primarily determine the coat color of rock pocket mice: eumelanin, which is dark-colored, and pheomelanin, which is light-colored. Researchers analyzed the data from these two populations in search of the genetic mutation responsible for the dark coat color. Scientists have collected data from a population of primarily dark-colored mice living in an area of basalt called the Pinacate lava flow in Arizona, as well as from a nearby light-colored population. However, populations of primarily dark- colored rock pocket mice have been found living in areas where the ground is covered in a dark rock called basalt caused by geologic lava flows thousands of years ago.

Most rock pocket mice have a sandy, light-colored coat that enables them to blend in with the light color of the desert rocks and sand on which they live. THE ROCK POCKET MOUSE The rock pocket mouse, Chaetodipus intermedius, is a small, nocturnal animal found in the deserts of the southwestern United States.

Rock pocket mouse video questions answers