A dominant allele (A) is found at equal frequency with a recessive allele (a) in a...
A dominant allele (A) is found at equal frequency with a recessive allele (a) in a population of mice. There is no selective force for this gene (fitness of all genotypes is the same). Which allele is most likely to become fixed in the population over time?
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A The dominant allele, A |
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| B |
It is impossible for either allele to become fixed in the population |
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C They are both equally likely to become fixed in the population, it is purely random |
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D The recessive allele, a |
Homework Answers
Answer C is correct.
Dominant allele (A) and recessive allele (a) both equally likely to become fixed in the population, it is purely random. When there is no lethal effect due to homozygous dominant alleles or homozygous recessive alleles, both the alleles can be fixed randomly in the population over a time period.
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