The monohybrid punnet square is a visual tool that you can use to determine the possible combinations of genetic allele. The monohybrid punnet square is useful for looking at only one gene combination.

Genotype: the genetic code in cells that's has your full hereditary information. You get your genotype from your parents

Phenotype: physical characteristics that are influenced by its genotype and the environment

Phenotype can change and is not directly inherited

Genotypes & Monohybrid Punnet square