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Pedigree worksheet illustrating a family's genetic history with symbols for males, females, affected and unaffected individuals, and questions about Huntington's Disease.

Pedigree worksheet showing a family tree with symbols for affected and unaffected individuals, including a legend and questions about Huntington's Disease inheritance patterns.

Pedigree worksheet showing a family tree with symbols for affected and unaffected individuals, including a legend and questions about Huntington's Disease inheritance patterns.

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Show Answer Key & Explanations Step-by-step solution for: Pedigree Practice Problems PDF | PDF
1. The members affected by Huntington's Disease are: I-1, II-2, II-3, II-7, and III-3.
2. Huntington's disease is caused by a dominant trait.
3. Individuals I-1 and I-2 had 8 children.
4. Individuals II-1 and II-2 had 2 girls.
5. Individuals III-2 and II-4 are first cousins.
Parent Tip: Review the logic above to help your child master the concept of pedigree worksheet middle school.
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