In a large population of randomly reproducing rabbits, a recessive allele r comprises 80% of the...
In a large population of randomly reproducing rabbits, a recessive allele r comprises 80% of the alleles for a gene. What percentage of the rabbits would you expect to have the dominant phenotype?
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36%
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32%
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40%
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50%
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64%
Homework Answers
Option a is correct. 36% of the rabbits would be expected to have the dominant phenotype.
This is because recessive allele comprises 80% of the population so the frequency of recessive allele is 0.8
The frequency of dominant allele will be 1 - 0.8 = 0.2
According to Hardy weinberg equilibrium
p^2 + 2pq + q^2 = 1
The percentage of rabbits to dominant phenotype is p^2 + 2pq
That is 0.2^2 + 2(0.2)(0.8)
= 0.4 + 0.32
= 0.36 or 36 %
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