My kids started this activity today and loved it! I overheard a few students exclaim, "Yes! I have pink eyes!", which is a sentence I never thought I would hear:) "Monster Babies" is the culminating activity for the Harry Potter Genetics unit from the NIH. The students flip a coin to determine inherited alleles and complete Punnett squares to find the probability of inherited traits. (If you don't want coins flying all over the place, a few of my students found a coin toss simulator website on their personal devices that they used instead.) The assessment covers simple Mendelian Inheritance, Codominance, Incomplete Inheritance, and regulatory genes. I made a few formatting changes and added a section for students to make a "birth announcement" for the monster baby they create. I only included a key for the second table because the rest of the answers will vary based on the coin toss. The entire Harry Potter Genetics unit can be found here:
Handouts for the rest of the unit are free in my store. Please let me know if you have any questions or suggestions.