EVOLUTION
EVOLUTION OF A POPULATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Directional
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Stabilizing
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Disruptive
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Detailed explanation-1: -In rock pocket mice, a mutation in the gene for fur color results in black fur instead of the brown fur found in mice without the mutation. This mutation causes the mice to be more visible in areas of scrub.
Detailed explanation-2: -Fur color is controlled by many genes (4:29). Most genes are identical, but dark and light rock pocket mice differ in one gene (Mc1r; 4:55). Data from Data Set 2 show that a mouse’s genotype for the MC1R gene affects their fur color. Mice with two copies of allele 2 have the darkest fur.
Detailed explanation-3: -Dark fur color seems to have the greatest selective advantage. On the light-colored substrate, 29% of the mice have dark fur, while only 5% of the mice on the dark-colored substrate have light fur.
Detailed explanation-4: -In rock pocket mice, a mutation in the gene for fur color results in black fur instead of the brown fur found in mice without the mutation. This mutation causes the mice to be more visible in areas of scrub.