Are these in Hardy-Weinberg?

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bionewbie
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Are these in Hardy-Weinberg?

Post by bionewbie » Thu Feb 02, 2006 3:20 pm

Are these in Hardy-Weinberg equilibrium?

a) A population of 40 bears undergoing natural selection is reduce to 20 in only 5 generations. At this point, the genotype frequency for AA is 0.25.

b) If B is the brown-eye allele and b is the blue-eye allele, given a population consisting of 323 BB, 23 Bb, and 45 bb individuals.

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MrMistery
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Post by MrMistery » Thu Feb 02, 2006 7:56 pm

These are textbook questions, you should be able to fing the answers yourself if you have learned and understood HW
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bionewbie
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Post by bionewbie » Thu Feb 02, 2006 8:06 pm

Well, from what I understand about HW is based on the assumption that the population has to be large. There is no migration, no mutation, with random mating and no natural selection ... I'm not sure how that fits in with b) part then ...

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mith
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Post by mith » Thu Feb 02, 2006 11:20 pm

For it to work it'll have to be a huge population, but you can still determine the equilibrium using the equation...it just won't be accurate in real life.
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Post by 2810712 » Fri Feb 03, 2006 10:15 am

think about why are these conditions required to apply the eqn.
As non-random mating, mutation,natural selection are operationg ,if you know the bianess factor you can still get the result by including those factors in our eqns.


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