If you know the genotypes of the parents, what can you use to determine the possible genotypes of the offspring

You can use punnet squares to see possible percentages of genes of the offspring

You can use a punnett square to find the genotypes of the offspring. let’s say that one parent had a trait with the genotype AA, and the other had Aa. their children would have a 50% chance of being AA and a 50% chance of being Aa. you simply combine the letters that correspond with a given box, like in a times table.