Answer:
A Punnett square is a tool used to determine the possible genotypes of offspring when mating two parents with known genotypes.
To create a Punnett square for the Fisher family, you would need to know the genotypes of the two parents.
Then, you would need to draw a grid with the genotypes of one parent on the top and the genotypes of the other parent on the side.
Finally, you would fill in the boxes with the possible combinations of the two parents' genotypes.