2. Mendel's Laws of Inheritance
Probability and Genetics
1:42 minutes
Problem 37b
Textbook Question
Textbook QuestionGalactosemia is an autosomal recessive disorder caused by the inability to metabolize galactose, a component of the lactose found in mammalian milk. Galactosemia can be partially managed by eliminating dietary intake of lactose and galactose. Amanda is healthy, as are her parents, but her brother Alonzo has galactosemia. Brice has a similar family history. He and his parents are healthy, but his sister Brianna has galactosemia. Amanda and Brice are planning a family and seek genetic counseling. Based on the information provided, complete the following activities and answer the questions.
What is the probability that the first child of Amanda and Brice will have galactosemia? Show your work.
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