the genetics of eye color is not yet fully understood. there are multiple pigments and interaction between alleles at play, but we will look at a simplified example. in europeans, b is dominant and results in brown eyes, while b is recessive and results in blue eyes. in individuals with the bb genotype, 85 percent have brown eyes, 14 percent have green eyes, and 1 percent have blue eyes. what is the penetrance of the b pigment allele?