Genetic Counseling Video Lessons

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Problem: Huntington's disease, which causes degeneration of neurons, runs in Maria's family. Huntington's is a heritable autosomal dominant genetic disease. Family members that have the disease include Maria's paternal grandmother and Maria's paternal uncles. Maria's paternal grandfather does not have the disease.Because symptoms of Huntington's disease do not appear until later in life, genetic testing is necessary to determine whether a younger individual possesses the allele for the disease. These tests determined that Maria's father does not carry the allele for Huntington's disease.Maria's maternal uncle suggested that Maria create a pedigree to track the disease in her family. Use the symbols provided to complete the pedigree.

FREE Expert Solution

The construction of the pedigree is quite straightforward. Her father, who has two other siblings go to the left side of the figure. 

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Problem Details

Huntington's disease, which causes degeneration of neurons, runs in Maria's family. Huntington's is a heritable autosomal dominant genetic disease. Family members that have the disease include Maria's paternal grandmother and Maria's paternal uncles. Maria's paternal grandfather does not have the disease.

Because symptoms of Huntington's disease do not appear until later in life, genetic testing is necessary to determine whether a younger individual possesses the allele for the disease. These tests determined that Maria's father does not carry the allele for Huntington's disease.

Maria's maternal uncle suggested that Maria create a pedigree to track the disease in her family. Use the symbols provided to complete the pedigree.

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What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Genetic Counseling concept. You can view video lessons to learn Genetic Counseling. Or if you need more Genetic Counseling practice, you can also practice Genetic Counseling practice problems.

What professor is this problem relevant for?

Based on our data, we think this problem is relevant for Professor Herrick's class at UCONN.