This model allows students to explore the inheritance of bar eyes, yellow body color, and dumpy wings in fruit flies (Drosophila melanogaster). Students may gather data to infer whether these traits are dominant or recessive, sex-linked or autosomal. These traits are not often mentioned in the textbook, so teachers may use them to extend students’ understanding after learning about the common examples (e.g., white-eyed).
1. Select one of three cases
2. Click the "Start/reset" button to start or start over.
3. Click the "Press and choose 2 parent flies" button.
4. Choose a male and a female in the simulation window. The males are smaller and have a dark abdomen tip.
5. Click the "cross!" button to conduct a test cross.
6. Examine offspring phenotypes in the simulation window and the "progeny" section.
This model was made by Dr. Lin Xiang at the University of Kentucky. If you mention this model in a publication, we ask that you include the citations below.
Xiang, L. (2023). Genetic Linkage Analysis in Drosophila. Department of STEM Education, University of Kentucky, Lexington, KY.
This work is licensed under the Creative Commons Attribution-NonCommercial-ShareAlike 4.0 License. To view a copy of this license, visit https://creativecommons.org/licenses/by-nc-sa/4.0/.
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