Choose pair of genes for Mom and Dad. See eye colors of the family. Genes shown as jeans. Lots of kids. So you can see genetic probabilities.
Each parent has a pair of genes (two alleles) for eye color. Brown is dominant and blue is recessive. Anyone with a brown gene has brown eyes. Even if they have just one brown gene (and the other gene is blue) they will have brown eyes. If they have two blue genes then their eyes are blue. Each parent gives their kid one gene, more specifically one "allele" (gene variant), to their offspring. So each child ends up with two alleles, one from Mom and one from Dad. This simple genetic structure results in an easy to interpret distribution of eye color in the grid of kids. Scratch cat is a cartoon and so has simple genetics.
