Cooties has been published in American Biology Teacher, you can download the article here: ABT Cooties
If you are out of Arizona and would like to purchase the Cooties materials for your classroom, contact Nadja Anderson

In this activity students will simulate the work of Gregor Mendel to investigate how traits are inherited. Students mate "Cootie" organisms with different true breeding traits and explore trait behaviors (dominant, recessive) and trait probabilities- while having fun! This lesson should be introduced before genetic terminology, DNA and/or Punnett Squares. [Three to four 50 minute class periods]
Downloads: (Note that the lab manual has not been updated for use with the new App. The older, compatible, version of the app is located at the bottom of the page.)
- Cooties Student Guide
- Cooties Terminology (Terminology should be introduced after the activity).
- Cootie Power Point Presentation
Note to teachers:
The admin password, used for overwriting data, clearing data, and which can be used in place of a forgotten password is:
"CootieGeneticsAdmin"
(Without the quotes)
Below is the older version of the software used in the lab.
Cootie Genetics: (Older Version)
Cooties Terminology (Terminology should be introduced after the activity).
Cootie Power Point Presentation
Alternative Cooties Download—if your students already have been introduced to the terminology of genotype and phenotype, then you can use this Cooties Software Download 2.