Question

If 70% of the hypothetical population passed along allele B, the dominant allele for brown eyes, and 30% passed along allele b, the recessive allele for blue eyes, the proportion of the subsequent generation with brown eyes would be ___________, given the Hardy-Weinberg equilibrium.

Answer 1

91%

Step-by-step explanation:

The Hardy-Weinberg equation is given by:-

p2 + 2pq + q2 = 1

where p is the frequency of the "A" allele

q is the frequency of the "a" allele in the population.

In the equation, p2 represents the frequency of the homozygous genotype AA,

q2 represents the frequency of the homozygous genotype aa,

2pq represents the frequency of the heterozygous genotype Aa.

Through the known frequencies of i.e. p and q allele frequencies are known, then the frequencies of the three genotypes may be calculated using the Hardy-Weinberg equation.