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Name______________________________________Date__________________Sec______ Family Pedigree Project Purpose: To use what you’ve learned about genetics to create a family pedigree that traces 1 genetic trait through at least 3 generations of your family. Objectives: 1. 2. 3. 4. To recognize your genetic history. To test select individuals from your family for several genetic traits. To determine which traits are dominant in your family. To present the data for posting on the team Pili Ia‘u Project page Materials: PTC, Sodium Benzoate, Thiourea, and Control Test Paper Pedigree Chart of family Trait Data Table Procedure: 1. Now that you’ve had some practice, you will start to make a pedigree of your family that will show one genetic trait passed through at least 3 generations. 2. Start with a list of all of your know relatives (both living and deceased). It should be easier if you list people according to families (ex: your aunt/uncle and their children). 3. Next to each name, list their date of birth (if known), their relationship to you, and any other information that will help you to create your pedigree. (Also indicate if the person is deceased-when applicable). 4. When you have listed at least three generations (including your generation), you can start to draw out your pedigree. 5. Leave some space below each person in the pedigree (circle/square), record the person’s first and last name. 6. Decide which traits you want to research about your family. You will be required to perform the taste test on as many relative as you can, but you must also collect data on 2 additional traits. You may use any of the following: ear lobe attachment, tongue rolling, hitchhiker’s thumb, mid-digital hair, dimples, freckles, or widow’s peak. 7. Create a data table to collect all data. (See the example below) 8. After collecting all the data, choose 1 trait to record on your pedigree. Remember to color in the circle/square of the people who have the trait. 9. Your pedigree should include pictures of your relatives or pictures of the trait you tested. 10. Use your pedigree to hypothesize the probable genotype of each of your family members. Include your hypothesis about whether you think this trait is caused by a dominant or recessive gene. 11. Your pedigree will be displayed through the Pili Ia‘u website with the explanation of what it means about your genetic make-up. Sample Data Table Name Relationship/ PTC Birthdate Sodium Thiourea Control Benzoate Dimples Tongue Rolling Grading Rubric – Family Pedigree Project Criteria Data Table 5 pts. 3 pts. 1 pt. Data is complete 3 traits for 3 generations included Neatly done, organized On time Most data is completed Incomplete Includes 3 traits for 3 Missing parts generations Late Not very organized, confusing to reader Pedigree Pedigree is neatly drawn Correct symbols and color coding are used Pedigree is complete to 3 generations Pedigree is somewhat confusing Most symbols are correct with color coding Pedigree is complete to 3 generations Incomplete Symbols used incorrectly or missing Late Organization Pedigree is neatly organized Generations and symbols are clear Pedigree is somewhat organized but the reader has a hard time determining relationships and generations Not organized, very confusing to reader Aesthetics Overall project is appealing to reader Easy to read Pictures added to make it more interesting to reader Project is easy to read Some pictures are included but not complete Not attractive No pictures included Explanation Explanation is clear and concise Includes hypothesis of genotypes for each family member Includes hypothesis of dominant/recessive trait Explanation is somewhat clear Does not include hypothesis of genotype and/or hypothesis of dominant/recessive trait Explanation is incomplete No hypothesis made