How do each of the following affect allele frequencies in a population? a. Migration b. Genetic...
How do each of the following affect allele frequencies in a population?
a. Migration
b. Genetic drift
c. Mutation
Homework Answers
a)Migration is the movement of individuals from one population to another.
>Immigration=individuals migrate into population.
>Emmigration=individuals migrate out of population.
Both process allow gene flow between populations.Gene flow may change the frequency of alleles in the population.
b)Genetic drift is the change in allele frequencydue to change(not natural selection),and may include loss of alleles from the gene pool.Most likely to have an effect on small population.
c) Mutation is a weak force for changing allele frequencies,but is a strong force for introducing new alleles.
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