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

Example: Mr Spock + Nurse Chapel

One more example. Let's mate Mr Spock (of the recessive pointy ears) instead to his frequent human admirer, Nurse Chapel, who has two normal alleles.

 

 

Sadly, the little guys have no chance of pointy ears now.

To sum it up, Mr Spock and Nurse Chapel have 100% round eared babies, while Mr Spock and Jax have 50% round and 50% pointed ear babies. Ahh, the mystery of romance, motherhood, and genetics…