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    Punnet Square for Cystic Fibrosis Determination

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    Bob and Sally recently married, Upon deciding to plan a family , both Sally and Bob find out that they are both heterozygous for cystic fibrosis, but neither of them has symptoms of the disorder. Set up and complete a punnett square for cystic fibrosis for this couple; when doing the Punnett Square, C=normal allele; and c=allele for cystic fibrosis. Based on punnett square, calculate chances ( percentages ) for having a healthy child ( not a carrier), a child trait is a carrier for the cystic fibrosis?

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    Solution Summary

    See a punnett square that shows the percentage chance that the offspring will carry the disease. Punnett square is explained.