Part c: choose the genotype of the parents you will use punnett squares to predict the probability that two parents of your species will pass a particular trait to their offspring. each parent has two alleles for a particular gene, one on each homologous chromosome. to prepare to make the punnett squares, write down the genotypes of the parents for the three traits you’ll be predicting. example: mother: yyiripf father: yyiwipf