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Click here: Classical Genetics Simulator (CGS)






How to use CGS:

Click the link above to start CGS in a new window. Refer back to these instructions as needed. If this is your first time using CGS, choose "Collect new Organisms" from the Login Menu and enter the Course ID and Account given to you by your instructor. To recover organisms that you saved previously, choose "Retrieve Saved Organisms" and enter your password. Remember to write down your password when you log in the first time.

New Student Retrieve SavedPopulation Menu

From the Population Menu, choose a population to investigate. A wild population with at least one segregating trait will be collected if you select a population that has not yet been examined.

Organisms can be crossed by clicking or dragging one male and one female into the crossing box on the right side of the screen. Once two organisms are in the crossing box, click the "Cross" button to create a new generation.

Work bench

Organisms can be sorted and viewed according to sex, any single trait, or all traits by using the drop-down menus on the top of the vial.

Information about each vial can be found by clicking the "Analysis" button. Notes and vial info can be copied & pasted into a word processor for easy note taking. A Chi squared test can be performed by clicking the "Stats" button and entering an expected ratio.


To save your organisms and return to the Population Menu, click the "Done" button on the lower right corner of the screen.

Instructor Information