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Example Question #3 : Mendelian And Population Genetics
A rare recessive mutation causes rabbits that are normally white to be pink. If one out of every 625 rabbits is pink, what percentage of the population is heterozygous?
Possible Answers:
Correct answer:
Explanation:
We can use the Hardy-Weinberg equilibrium formulas to calculate the allele frequencies.
We know that the frequency of homozygous recessive (pink) rabbits is . This is equal to
in the Hardy-Weinberg calculation. We can use this information to solve for
, the recessive allele frequency.
Now that we know the value of , we can solve for the value of
.
The frequency of heterozygotes is equal to in the Hardy-Weinberg calculation. Now that we know the frequency of each allele, we can complete this calculation.
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