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AP Genetics Math
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Laws of Probability Calculate the probability of tossing three coins simultaneously and obtaining three heads. Express in fraction form.
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Practice Problem A brown-eyed man with a blue-eyed mother marries a brown-eyed woman with a blue-eyed father. What is the probability that their first child will be brown-eyed? That the second child would be brown-eyed?
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Chi Square A heterozygous red-eyed female fruit fly was crossed with a red-eyed male fruit fly. The results of the cross are shown below. Eye color is a sex-linked trait on the X-chromosome. Red eyes are dominant to white, determine the chi square value. Round to the nearest hundredth. Phenotype # flies observed Red Eyes134 White Eyes66
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Chi Square Strategy What are we given? What do we need to figure out? How? Then what?
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Chi Square Values
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Chi Square with Christmas MM’s What is the expected? What is the chi squared (x 2 ) ? What is the degrees of freedom? As an MM Scientist, do we accept or reject with 5%?
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