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Question: wooly hair is a rare dominant trait found in people...

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Wooly hair is a rare dominant trait found in people of Scandinavian descent in which the hair resembles the wool of a sheep. A male with wooly hair, who has a mother with straight hair, move to an island that is inhabited by people who are not of Scandinavian descent. Assuming that no other Scandinavians immigrate to the island, what is the probability that a great-grandchild of this male will have wooly hair? If this wooly-haired male has eight great-grandchildren, what is the probability that one out of eight will have wooly hair?

Please walk me through step by step of how to determine the following questions, draw a pedigree for each generation and indicate the genotypes of each individual. Thanks!!

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