hardy weinberg equilibrium 
[Sep. 20th, 200809:47 am]
Biology Help

I did this whole problem, and I keep on getting 2 extra people. But I add everything up and they all equal to one, so I don't know what I'm doing wrong. I'm in Evolutionary Ecology, and we're working on genetics problems, but they shouldn't be so bad 'cos I'm not in Genetics (this is a prereq for genetics).
Pretend there is a population of humans that exhibits a rare recessive allele for pink hair, and 12 individuals out of the entire population of 100,000 have pink hair. If the population is in HardyWeinberg Equilibrium, HOW MANY individuals are heterozygote CARRIERS of the allele, and HOW MANY individuals do not have the allele? What are the frequencies of p, q, p2, q2, and 2pq? SHOW YOUR WORK.
This is my work and answers:
pp = q2 = 12/100,000 = .00012
q = .011
p + q = 1 p + .011 = 1 p = .989
p2 = .9781
2 x .989 x .011 = .0218
Therefore 
p = .989 q = .011 p2 = .9781 q2 = .00012 2pq = .0218
# PP/100,000 = .9781 # PP = 97,810 people
# Pp/100,000 = .0218 # Pp = 2,180 people
checking: 97,810 + 2,180 + 12 = 100,002
?


