On a punnet square, let P equal the variable.
P p
P PP pp
p Pp pp
25% of the offspring will be Homozygous dominant, 50% will be Homozygous recessive, and 25% will be Heterozygous dominant.
Note:
Heterozygous means Pp since "Hetero" means different.
Homozygous means PP or pp since "Homo" means same.
