sbailey1
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" Imagine that you are studying a population of butterflies which have 2 alleles for wing color: Blue (B) which is completely dominant over orange (b). They are in frequencies p= 0.9 and q= 0.1. What is the frequency of genotypes produced in this population, assuming HWE? "​

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scottsunguyen

Answer:

BB = 81%, bb = 1%, Bb = 18%

Explanation:

p + q = 1

p^2 + 2pq + q^2 = 1

p is dominant and q is recessive so p = B and q = b

0.9^2 + 2(0.9 * 0.1) + 0.1^2 = 1

BB = p^2 = 0.9^2 =0.81

bb = q^2 = 0.1^2 = 0.01

Bb = 2pq = 2*0.9*0.1 = 0.18

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