Table of Contents

• Punnett Squares in Theory
• 1: Introduction
• 2: The Punnett Menu
• 3: Creating combinations chez Punnett
• 4: Insults by the dozen
• 5: Punnett menu revisited
• Punnett Squares in Practice
• 6: Onwards to Genetics
• 7: Recap of genetics vocab
• 8: Can this marriage be saved?
• 9: Vampire Fangs
• 10: Example: Spock and Jax
• 11: Example: Spock and Nurse Chapel
• Bigger Punnett Squares
• 12: And you thought we were done!
• 13: The Dreaded Double Hybrid
• 14: Another Dihybrid Cross
• 15: Is the ratio exact? (Hint: NO!)
• 16: Review

And you thought we were done...

You might have noticed that I was running out of interesting combinations of genotypes to mate. And you probably said, good, the module must be almost over.

Well, not so fast, buddy. I have more tricks up my sleeve. Bigger fish to fry. Or at least, more expansive Punnett Boxes to fill.

We represented the mother's genotype as a (pink) coin with two sides, and the father's as a (blue) coin with two sides. But, of course, there is more to it than that. Mice don't just have vampire fangs vs. wild-type teeth, they also have

• Straight vs. crooked tails
• Non-flying vs. flying limbs
• Fluffy vs. flat fur
• Mighty muscles vs. non-mighty muscles
• and so on.

OK, I may have made up a few of those, but it's more fun to talk about fluffy red-eyed vampiric mice than yellow peas with wrinkled skin, IMHO.