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Exploratorium: Genetic Crosses
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Activity Description
Source: http://annex.exploratorium.edu/imaging_station/activities/classroom/genetic_crosses/ca_genetic_crosses.php (License: Protected by Copyright (c) [i.e. screenshot])
In this activity, students explore genetic inheritance patterns in the fruit fly using Punnett squares to predict the results of genetic crosses and determine the genotypes of the parent flies in a particular cross.
Preparation
- Review detailed Lesson Plans and Resources .
- Download the images of fruit flies. There is a separate folder for each fly cross in this activity. Each folder contains the following:
- images to be projected
- sheets of small images (the progeny for each cross) to be printed on a color printer and cut into individual images
- a Punnett square form
- information regarding the quantities you will need
- Duplicate the student pages by selecting the Link to Student Pages.
How-To
Follow the link in the Preparation section (above) labeled Lesson Plans and Resources. In the Procedure section on that page, you will find detailed information on how to present this activity in your class.
Teacher Tips
- You may want to make a copy of the "What's Going On?" section for students.
More Ways
- Check Going Further at the bottom of the procedures in case you want to challenge your advances students.
Program Areas
- ASE: High School Diploma