Punnett squares are useful for determining the probabilities of genotypes and phenotypes. An example of a Punnett square is shown below.

Where is Mendel's Law of Segregation best shown in this Punnett square?
When each parent's alleles are separated across the top or along the side.
When two of the dominant alleles, B and B, are combined.
When dominant and recessive alleles, B and b, are combined.
When two recessive alleles, band b, are combined in the offspring