MendelStar!
Mendel's rules are the based on simplifying assumptions--the genes being considered are in unrelated places in the genome, that they live on 'generic' nuclear chromosomes, and that gene products under study have no interaction with each other. What happens when one or more of these assumptions are invalid? Using a hypothetical organism (hey--the truth is out there, but it isn't very tractable!) you'll learn how to recognize and distinguish between these sorts of misbehaviors.
Click the above link to proceed to the simulation.

Overview of this assignment (includes example NOTEBOOK write up)

Meredith Henderson, a previous MCB422 TA, wrote a primer on the chi-square test; I modified it slightly and posted it.

Required reading:
Mendel's 1865 paper on pea genetics. It's thoughtful, clearly written, and better science than 95% of the junk in circulation today.
Start at Electronic Scholarly Publishing
Click on the AUTHOR (with notes) link on the left, then find Mendel. You're looking for 'Experiments in Plant Hybridization'; I found the English version more approachable than the original, but then I don't know German...

NDSU site with some stuff that you may find useful