We did this using Punett squares and family trees. We would use family trees because they were very similar to a family tree, but they would show who carried the dominant trait and who carried the recessive trait. We could also reveal whether the trait was heterozygous dominant or homozygous dominant. This would be decided by the parents of this individual. If one parent of the individual had the recessive form of the trait and the other parent had the dominant form, the individual would be heterozygous dominant. This could also be known as a hybrid form with their allele. If there was a case where the majority, if not all, had the dominant trait in the pedigree, then the answer would be simple. If I had two parents who possessed the dominant trait and their parents possessed the dominant trait. So, when deciding whether the offspring of the first two parents will be homozygous or heterozygous, they will be homozygous. This would be due to the hereditary improbability of the possible heterozygote in these alleles of relatives being passed down through generations. You would then imply that these offspring would be homozygous purebreds. Once you have found the genotypes of the two individuals you wish to have