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Learners mark their traits for tongue rolling, PTC tasting (a harmless, bitter chemical), and earlobe attachment on tree leaf cut-outs. They then place their leaves on a large tree with branches, in which each each branch represents a different combination of traits. When completed, the tree forms a visual representation of the frequency of trait combinations within the group. Included are handouts in English and Spanish. This resource also contains information about PTC safety.
- 30 to 45 minutes
- 30 to 45 minutes
- $5 - $10 per group of students
- Ages 8 - 14
- Activity, Lesson/Lesson Plan
- English, Spanish
Quick Guide
Materials List (per group of students)
- PTC paper
- Hard candies
- Leaf cut-outs
- Tape
- Scissors
- Transparencies or large butcher paper
- Pens/pencils
- Tree (large-form)
- Tree (overhead)
- Tree (puzzle)
Subjects
-
Life Sciences
-
Heredity and Genetics
- Patterns of Heredity
- Human Genetics
- Human Body
-
Human Senses and Perception
- Taste
-
Heredity and Genetics
-
Mathematics
-
Data Analysis and Probability
- Data Analysis
- Data Collection
- Data Representation
-
Measurement
- Rate
-
Data Analysis and Probability
Audience
To use this activity, learners need to:
- see
- read
- taste
- touch
Learning styles supported:
- Involves teamwork and communication skills
- Involves hands-on or lab activities
Other
Components that are part of this resource:
Includes alignment to state and/or national standards:
This resource is part of:
Access Rights:
- Free access
By:
- Malone, Molly ; Starr, Harmony ; Mitchell, April
Source Collection
- Teach.Genetics
Rights:
- All rights reserved, University of Utah, 2006
Funding Sources:
- Howard Hughes Medical Institute Precollege Science Education Initiative for Biomedical Research Institutions Award, 51000125
- Health Resources and Services Administration, Maternal and Child Health Bureau, Genetic Services Branch and the March of Dimes, U33MC00157