Question

In chicago, the b allele has a frequency of 0.086 among african americans. What is the frequencyof the a and the o alleles in this population

Answer 1

a and b are codominant alleles hence they would have same frequency and o is recessive therefore by hardy Weinberg eqn.

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

(p+q)^2=1

(p+q)=1

now p=a+b=0.086×2=0.172

q=1-0.172=0.928