In humans, brachydactyly is a dominant condition; 6,400 people in a population of 10,000 show the disease (1,600 are BB, 4,800 are Bb) and 3,600 are normal phenotypes (bb).The frequency of the b allele is
A)0.6.
B)0.4.
C)0.36.
D)0.48.
E)0.16.

Question

Quizplus · Accepted Answer

The frequency of the b allele can be calculated using the formula: frequency of b = (2 * number of bb + number of Bb) / (2 * total population). Here, it is (2*3600 + 4800) / (2*10000) = 0.6.

In Humans, Brachydactyly Is a Dominant Condition; 6,400 People in a Population