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PracticeTest2

PracticeTest2 - Practice Test 2 PCB3063 1 Consider the...

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Practice Test 2 – PCB3063 Page 1 of 6 1. Consider the following pedigree, which has individuals that are hypersensitive to UV radiation indicated by solid black: a. What is the mode of inheritance for the gene that causes the hypersensitivity? (dominant or recessive) b. What is the probability that individual 4 in generation III would have a hypersensitive child if he married a woman that was hypersensitive? c. What is the probability that individual 6 in generation III would have a hypersensitive child if she married a non-hypersensitive man who has a son from a previous relationship that is hypersensitive? Explain your answer.

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Practice Test 2 – PCB3063 Page 2 of 6 2. In a family of five children what is the probability that: a) all are males? b) three are males and two are females? c) two are males and three are females? d) all are of the same sex? 3. The previous question referred to a human family. Would the probabilities you list above differ if: (you just need to state “same” or “different” for ‘a’ and ‘b’) a) you were considering the sexes of the young for a pair of birds that lay a clutch of five eggs? b) you were considering the sexes of the young for a pair of turtles? c) Justify your answers to parts ‘a’ and ‘b’ of this question.
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PracticeTest2 - Practice Test 2 PCB3063 1 Consider the...

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