Cross-Pollinated Pedigree Poster

Cross-pollinated Pedigree Poster

Now that you have successfully produced the ideal plant by selective breeding, it is time to visually display the generations that resulted in this positive outcome. You will be making small three-dimensional models of each plant and organizing it in a pedigree pattern so that other engineers can quickly see the steps that you followed in producing the perfect plant. The poster will show the same relationships that you recorded in the Cross-pollination lab, but in a more visual manner. Please review the information below to help you in making the models and organizing them on your poster.

A. Model materials:

Pipe cleaners = Stems Cardstock = Leaves String = Roots Buttons = Flowers 4” (tall stem) 1” x 1” square 1.5” ( short roots) One- single flowering (wide leaf) 2.5” (short stem) ½” x 1” rectangle 3” (long roots) Two- double flowering (narrow leaf)

Other materials: Poster paper, 2” pipe cleaners to join leaves to stems, tape to attach models

B. General directions:

 You will make a 3-D model of the two original plants from the lab and each offspring plant that was selected to continue in the breeding process. These 3-D models will be taped next to their genotype on the poster.

 You will neatly draw scaled pictures of the plants that were not selected to continue in the breeding process. These drawings will be taped next to their genotype on the poster.

 Assemble the 3-D models like the diagram below:

Button (1 or two)

Cardstock (2) Pipe cleaners (2 pieces)

String(2)

C. Steps for making the poster:

1. Build all of the 3-D models for the selected plants. Tag each model with its genotype.

2. Neatly draw scaled versions of the plants that were not selected (drawings should be same size as 3-D models). Tag each drawing with its genotype.

3. Lay out the locations for the models and drawings on your poster. Each piece should be labeled with its genotype in bold, easy to read letters. Do not crowd the pieces. Attach with tape.

4. F1 generation: Draw a horizontal solid line between the first two plants that were cross-pollinated, and then two vertical solid lines down to their offspring plants.

5. Repeat step 4 with the rest of the generations.

6. Draw a bold dotted line from each plant that you selected from the F1 generation to

its position as a parent in the F2 generation.

7. Repeat step 6 with the rest of the generations.

8. Add a title to the center of the top of the poster in large, bold letters.

9. Write the full names of all group members neatly at the bottom edge of the poster.

10. Add the date below the group’s names and turn in the completed poster to the designated area.

11. Return all materials and to their proper locations and clean up your work area.