Fry results using Punnett Square

[Mr Fisher]

Anybody out there able to show me how this works? It's been a long time since Biology class.

[Andy Sager]

Check this out: McGraw-Hill Virtual Biology Lab
Maybe it will help if you have a basic understanding of the P. Square. Just remember to use the genotype and phenotypes. Unless you know the pure genetics of the breeders, the genotypes will be off until a few generations.
Hope this helps