Lab Activity Blood Type Pedigree Mystery — Answer Key Upd

Draw a standard pedigree using these symbols: squares for males, circles for females, and a horizontal line between them to represent a marriage. A vertical line leads down to their children. Place all known family members from the Joseph and Rita family data into this chart, numbering generations (I, II, III) with Roman numerals. by shading their symbols, as this will be crucial for elimination later.

Depending on your course level (General Biology vs. AP/Advanced Genetics), the answer key accommodates two distinct conclusions for Leo’s true identity:

The specific name from the activity is not provided here, as it can vary slightly between worksheet versions (e.g., "Mystery in Wexford," "Mystery in Hespeler"). However, the methodology to arrive at the correct answer is absolute. Your final report should include the individual's name from your worksheet, their position in the pedigree, and a clear statement that they are the culprit. lab activity blood type pedigree mystery answer key upd

In the context of a high school biology lab, UPD is an interesting footnote—a reminder that the simple rules of inheritance have rare and fascinating exceptions.

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To find Joseph's blood type, you must work backward from his children's phenotypes. Joseph and Rita (Type AB-) have four children: (O-), Howard (AB-), (A+), and Danny (A-). is Type O- ( ): Since Rita is IAIBcap I to the cap A-th power cap I to the cap B-th power , she cannot provide an allele. However, the data lists

| | | $i$ (Mother) | | :--- | :---: | :---: | | $I^A$ (Father) | $I^Ai$ (Type A) | $I^Ai$ (Type A) | | $i$ (Father) | $ii$ (Type O) | $ii$ (Type O) | Draw a standard pedigree using these symbols: squares

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