List the possible genotypes and phenotypes for their children

Genotype can be described as the genetic makeup of an organism. Phenotype can be described as the physical characteristics which are observed in an individual.

Our genotype influences our phenotype.

For example, lets consider a male parent to be homozygous for brown eye colour which is  dominant, BB. The female parent has blue eye colour and is recessive, bb.

Let's make a punnet square,

         b         b

B    Bb        Bb

B    Bb       Bb

The results from the punnet square tell that all of the offsprings will have heterozygous genotype Bb, and the phenotype will be brown eyes.