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anthstudy2

# anthstudy2 - 1 Hardy Weinberg formula The main point of the...

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1. Hardy Weinberg formula The main point of the HW equation is to determine the number of organisms in a population that are AA, Aa, and aa for a gene, given that you have a sample population. Follow these steps to be successful at using the HW equation. 1. Determine the proportion of individuals that are homozygous recessive (aa) by dividing the number that exhibit the recessive trait by the number that is sampled. This number is q 2 2. Take the square root of this number to determine q 3. To find p, subtract q from 1. Remember p + q = 1. 4. Now that you know both p and q (the allele frequencies) you can determine the number of individuals that are homozygous dominant: p 2 (Remember this number is a proportion, so the problem may call for you to state actual number of individuals in your population. Multiply this number by your total population) 5. You can also determine the proportion of individuals that are heterozygous by this part of the equation: 2pq = the number of heterozygous individuals. 6. Check you work by making sure that your numbers all add to 1.0. In lions the allele for the albino trait is recessive over the normal tawny-striped coloration. A sample of 100 wild lions was examined, and it was determined that 9 of

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