Question

calculating the frequency of the dominant allele
in a sample population of people, 36% have the recessive trait of \free\ earlobes (q2). what is the frequency of the dominant allele for attached earlobes, p?
multiple choice
0.64
0.10
0.40
0.24

Explanation:

Step1: Find q value

Given $q^{2}=0.36$, so $q = \sqrt{0.36}=0.6$.

Step2: Use Hardy - Weinberg equation

In Hardy - Weinberg equilibrium, $p + q=1$. Substitute $q = 0.6$ into the equation, we get $p=1 - q$.
$p=1 - 0.6 = 0.4$.

Answer:

C. 0.40