hardy weinberg question

[rsk24]

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When doing hardy-weinberg equilibrium questions, does anyone have a method on recognizing whether they mean: q, q^2, etc.? On #160 of destroyer they say "the frequency for the allele for cystic fibrosis, an autosomal recessive trait is 1 in 2500."... I thought this would mean q, not q^2, but, it DID mean q^2. Any advice on how to recognize the differences in wording for these types of questions??

Also, I've heard opposing opinions on whether or not H.W. equilibrium requirements include isolation or not. Ppl have said because it says no migration that means isolation..but i've seen other places where it specifically says NO isolation! anyone have any insight on this?

Appreciate the responses ahead of time! 🙂

 

[yakuza]

When doing hardy-weinberg equilibrium questions, does anyone have a method on recognizing whether they mean: q, q^2, etc.? On #160 of destroyer they say "the frequency for the allele for cystic fibrosis, an autosomal recessive trait is 1 in 2500."... I thought this would mean q, not q^2, but, it DID mean q^2. Any advice on how to recognize the differences in wording for these types of questions??

Also, I've heard opposing opinions on whether or not H.W. equilibrium requirements include isolation or not. Ppl have said because it says no migration that means isolation..but i've seen other places where it specifically says NO isolation! anyone have any insight on this?

Appreciate the responses ahead of time! 🙂

I don't have the destroyer on me but from what I understand this might clear things:


genotype frequency: you only use the p+q = 1

phenotype frequency: use the other crap

p^2 homozygous dominant
q^2 autosomal recessive
2pq heterozygotes

SO, whenever they ask for phenotype stuff use this