Use the following information. Many members of the Fugate family in Kentucky are

Question

Use the following information. Many members of the Fugate family in Kentucky are blue -- the color of their skin not the content of their mood. Blue skin is caused by a mutation in the CYB5R3 gene, with CYB5R3 degree representing the dominant allele and CYB5R3' representing the recessive allele. The Fugate family is of European origin, and parents of blue children usually have white skin color, (see: Trost, C. 1982. The Blue People of Troublesome Creek. Science 82: 35-39.) A family in which the mother and father are both white skinned have a son with blue skin, if the mother and father also have a daughter, what are the chances her genotype is CYB5R3 degree / CYB5R3 degree ? 1/8 1/4 1/3 2/3 3/4 7/8 1/1 (100% chance)

Explanation / Answer

1/8

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