Question

In a population of 200 mice, brown fur is dominant to gray fur. If 120 of the 200 mice have brown fur, what is the frequency of mice that are heterozygous

Answer 1

The frequency of mice that are heterozygote is 0.3492

Hardy-Weinberg equation

Hardy-Weinberg equation is given by p² + 2pq + q² = 1 and p + q = 1

where 2pq is the heterozygote frequency.

p² = 120/200

p = 0.7746

p + q = 1

q = 0.2254

Heterozygote frequency = 2pq = 2(0.2254)(0.7746) = 0.3492

The frequency of mice that are heterozygote is 0.3492

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