Answer:
34.64%
Step-by-step explanation:
Assuming the problem is at hardy-weinberg equilibrium
p^2 + 2pq + q^2 = 1 where p^2 is the homozygous dominant genotype, 2pq is the heterozygous genotype, and q^2 is the homozygous recessive genotype
q^2 = 0.12
q = 0.3464