First determine the genotypes of the parents.





One parent is blue and you were told in the question that blue color in wildcats comes from the homozygous BB state. Likewise, for the red parent which must be homozygous bb.





Now that you have the genotypes of the parents, perform a punnett square to determine what the F1 offspring would be (remember to place the gametes of one parent across the top and the gametes of the other parent down the left side. It does not matter which parent's gametes are placed across the top and which are placed down the side.):




Your punnett square should look similar to the one below. If it does not, review the material on gamete formation and how to set up the punnett square and try again.

B B
b Bb Bb
b Bb Bb




Count up how many of the four possible offspring in the square have the purple color and the heterozygous genotype.



Now return to the question page and select the correct answers.





OK, we know that the genotypes of all the F1 generation are Bb. What gametes will be produced by each of these individuals?





Now perform a punnett square using the gametes for two of the F1 individuals:





Your punnett square should look similar to the one below. If it does not, review the material on gamete formation and how to set up the punnett square and try again.

B b
B BB Bb
b Bb bb




Count up how many of the four possible offspring in the square have the blue, purple, and red colors and how many have the BB, Bb, and bb genotypes.



Now return to the question page and select the correct answers.