Answer:
b. If dark-colored rock pocket mice had a competitive advantage of 0.1%, it would take more than 1000 years for 95% of the population to have dark fur.
Explanation:
When dark-colored fur gives mice a 1% competitive advantage and 1% of the population begins with dark fur;
In more than 1000 years later the probability that 95% of the population will have dark fur will be 0.1%, this is because of Genetic Mutation, The genetic mutation have 0.1% of their genetic mutation that affects their fur color.
If dark-colored rock pocket mice had a competitive advantage of 0.1%, it would take more than 1000 years for 95% of the population to have dark fur.
Mutations are random changes which occur in the genes of living organisms.
These mutations are mostly deleterious in their effects. However, in some instances, mutations may result in the organism being more adapted to his environment.
In the case of the dark-colored rock pocket mice, the mutation resulted in the mice being better adapted to his environment. This advantage resulted in their being naturally selected for survival in their environment.
According to the statement, dark-colored fur gives mice a 1% competitive advantage and when 1% of the population begins with dark fur, in about 1,000 years, 95% of the population will have dark fur.
Therefore, if dark-colored fur gives mice a greater than 1% percentage competitive advantage, it will take a less than 1000 years for 95% of the population to have dark fur. However, if dark-colored fur gives mice a lesser than 1% competitive advantage, it will take greater than 1000 years for 95% of the population to have dark fur.
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