In a particular human population, the allele frequencies for the A-B-O blood type locus are
0.2 (allele IA), 0.25 (allele IB), and 0.55 (allele i).

a. What is the estimated frequency of individuals with blood type O?

Question

In a particular human population, the allele frequencies for the A-B-O blood type locus are
0.2 (allele IA), 0.25 (allele IB), and 0.55 (allele i).

a. What is the estimated frequency of individuals with blood type O?

brinazarski · Answer

Blood type A, actually...

abb0t · Answer

Are you familiar with hardy-weinberg? I think you can use that: p$^2$+2pq+q$^2$

brinazarski · Answer

I tried that... still coming up with the wrong answer; not sure why.

abb0t · Answer

Show me your process, I will let you know where you're going in the right or wrong direction. I am sure that you're doing it correct, maybe just some arthmetic issues. 

remember: p + q = 1
and if you have p$^2$ = $\sqrt{p^2}$ = p

brinazarski · Answer

Would that mean it's .2?

brinazarski · Answer

Cuz I did that with blood type O and it was .55 but that wasn't the answer... it was 0.3

brinazarski · Answer

And from that I assume it's looking for the squared number, but 0.04 isn't working in this case.

brinazarski · Answer

Because of that I'm hesitant to put .2 because I only have one try left.

brinazarski · Answer

Went to a help session and figured it out. Thank you though!