In humans, people with at least one dominant RhD allele have a Rh positive blood type. People with a homozygous recessive genotype have a Rh negative blood type. In the United States, 85% of the population is Rh positive and 15% are Rh negative. What are the values of p and q for the population in the United States?
The Hardy- Weinberg equation is as-
p2 +q2 +2pq=1
where p is the frequency of 'RhD' allele - Rh positive blood type
q is the frequency of 'Rhd' allele - Rh negative blood type
p2 represents homozygous genotype DD
q2 represents homozygous genotype dd
2 pq represents hetrozygous genotype Dd
to calculate the values of p and q are described as following:
85% population with Rh positive DD, 15 % population with Rh Negative dd
p= f(D) = 85% 85/100
p2 = 0.85
p= √0.85
p= 0.921
q= f(d) = 1- p f(D)
q= f(d) = 0.08
So, the values for p and q are p= 0.921 and q= 0.08
Get Answers For Free
Most questions answered within 1 hours.