HomeHHMI's BioInteractiveUsing Genetic Crosses to Analyze a Stickleback Trait

BioInteractive

Free Resources for Science Education

 
Classroom Resource
Using Genetic Crosses to Analyze a Stickleback Trait

Summary

A hands-on activity in which students analyze the results of genetic crosses between stickleback fish with different traits.

A hands-on activity in which students apply the principles of Mendelian genetics to analyze the results of genetic crosses between stickleback fish with different traits. Students use photos of actual research specimens (the F1 and F2 cards) to obtain their data; they will then analyze the data they collected along with additional data from the scientific literature. In the extension activity, students use chi-square analysis to determine the significance of genetic data.

Appropriate for: high school biology (all levels)

Supporting Materials (6)

Short Film
After the end of the last ice age 10,000 years ago, populations of marine stickleback fish became stranded in freshwater lakes dotted throughout the Northern Hemisphere in places of natural beauty like Alaska and British Columbia. These remarkable little fish have adapted and thrive, living permanently in a freshwater environment drastically different than the ocean.
Film Guides
These classroom-ready resources complement the short film Evolving Switches, Evolving Bodies, which tells the story of the dramatic transformation of stickleback fish as they adapted to living in freshwater habitats drastically different from the ocean.
Classroom Resource
A hands-on activity in which students interpret molecular diagrams and build physical models of eukaryotic gene regulation.
Classroom Resource
A worksheet that guides students through The Stickleback Evolution Virtual Lab. The virtual lab lets students learn firsthand the methods for analyzing body structure in stickleback collected from lakes and fossils recovered from a quarry. Students measure, record, and graph their results to discover evolutionary patterns.
Classroom Resource
A text transcript of the short film "Evolving Switches, Evolving Bodies" from the Making of the Fitttest short film series.
Virtual Lab
This virtual lab teaches skills of data collection and analysis to study evolutionary processes using stickleback fish and fossil specimens.

Download this item