Answer:
0.3
Explanation:
According to the Hardy-Weinberg principle, in a population in equilibrium, where p is the dominant allele and q is the recessive allele,
Allele frequencies:
p + q = 1
Genotype frequencies:
where p² is the dominant h0m0zygous phenotype and q² is the recessive h0m0zygous phenotype, and 2pq is the heterozygote.
p² + 2pq + q² = 1,
where p² is the dominant h0m0zygous phenotype and q² is the recessive h0m0zygous phenotype, and 2pq is the heterozygote.
Since we know q² = the recessive h0m0zygous phenotype, and the frequency is 0.09
q = \sqrt{0.09} \\ = 1
=0.3
