Depending on environmental conditions, inherited characteristics may be advantageous, neutral, or detrimental.You will analyze these Mc1r gene sequences to identify differences between the two mouse populations. Your instructor will give you a DNA Evidence Sheet. The MC1R protein is encoded by a gene called Mc1r. Traits that confer an advantage may persist in the population and are called adaptations. Do you want to teach your students about natural selection and adaptation using the example of the rock pocket mouse Download this teachers guide that provides background information, learning objectives, key concepts, and answers to the student worksheet. A rock pocket mouse’s fur color is affected by a protein called MC1R, which stands for melanocortin 1 receptor.Over time, the proportion of individuals with advantageous traits may increase (and the proportion with disadvantageous traits may decrease) due to their chances of surviving and reproducing. Inherited characteristics affect the likelihood of an organism's survival and reproduction.Which word describes the form of a dark pigment in organisms melanic. Most mice have sandy, light-colored coat to match the environment where they live. New heritable traits can result from mutations. A complete answer should resemble the following, with partial credit given to students who do not include all the key terms or concepts (key terms are in italics): Rock pocket mice with dark-colored fur were more fit on dark-colored volcanic rock because visual predators could not see them well that is, natural selection favored individuals with dark-colored fur. Which of the following is TRUE Read carefully.They might comment on the fact that the number of light-colored mice has decreased over time while the number of dark-colored mice has increased. Any reasonable explanation is acceptable. As shown in the animation, mice that blend in with their surroundings are harder for owls and other predators to see. Rock pocket mice can have either light-colored or dark-colored fur. Evolution results from natural selection acting upon genetic variation within a population. Explain how you decided which illustration represents the most recent rock pocket mouse population and why you positioned the others in the sequence as you did. 12 Members Description This animation shows why different fur colors can be advantageous to mice in different environments.There is a fit between organisms and their environments, though not always a perfect fit.An organism's features reflect its evolutionary history.
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