Name ________________________________________

The Gee in Genome -- http://nature.ca/genome/index_e.cfm

Go to "Try it" and then "Online Games" ' go to "Mix Those Genes"

Click on "More Information" to answer the following questions

1. What are the genes that control eye color called? ______________ and ________________
2. Which color is always recessive? _________________________

3. Identify the colors for each of the genotypes:
BBGg = __________________________ bbGg = _____________________________
Bbgg = __________________________ bbgg = _____________________________

---------- Go to "Choose Parents"

4. What are the genotypes of your three potential mothers and their eye colors (phenotypes)

Name Genotype Color
Jane    
Jill    
Jem    

Choose a mother, to go to the next page:
You chose ______________________ (name)

5. What are the genotypes of your three potential fathers and their eye colors (phenotypes)

Name Genotype Color
Rick    
Ron    
Rex    

Choose a father, to go to the next page:
You chose ______________________ (name)

What is your parents genotypes _________ x __________

6. Click on the "Make Babies" to show your offspring. -> Click on "More Babies" to see all 12
How many babies of 12 have: Brown eyes _______ Blue eyes ________ Green eyes_______

7. Follow the same procedure to pick new parents. You chose: ________________ and ___________________
How many babies of 12 have: Brown eyes _______ Blue eyes ________ Green eyes_______

8. Follow the same procedure to pick new parents. You chose: ________________ and ___________________
How many babies of 12 have: Brown eyes _______ Blue eyes _______ Green eyes______

9. Now do the squares! What will happen if you cross Jane (BbGg) and Rex (bbgg) ?
FILL OUT THE PUNNETT SQUARE to make your prediction.

10. Run the simulation to see their offspring. How many Jane and Rex babies out of 12 have:
Brown eyes ____________ Blue eyes ____________Green eyes _______________

11. Compare Punnett data to Simulation Data - reduce the fractions from the sim and punnett data.

  Simulation (program) -out of 4 Punnett Square (above) - out of 4
Blue    
Green    
Brown    


12. In your own words, describe how the Punnett square is a useful tool for genetics.