Question

In a random mating population, frequency of disease causing recessive allele is 80%. What would be the frequency of carrier individual in population?

• A. 64%
• B. 32%
• C. 16%
• D. 100%

Answer 1

The correct option is B 32%

According to the question, the genotype frequency of recessive allele is (q) = (80% or 0.8). Since p+q=1; thus the frequency of dominant allele= p= 1-0.8= 0.2. The frequency of the carrier individual= 2pq= 2 X 0.8 X 0.2= 0.32 or 32%. The correct option is B.