A Punnett square helps you determine the probabilities of different outcomes of a genetic cross.Identify the information that is needed to set up a Punnett square. The phenotypes of the parentsThe genotypes of the parentsThe phenotypes of the offspringThe genotypes of the offspringI'm not sure

To set up a Punnett square, you need the genotypes of the parents. A genotype refers to the set of genes an organism carries for a particular trait. In a Punnett square, the genotypes of the parents are used to predict the possible genotypes (and thus phenotypes) of their offspring. The phenotypes of the parents can help you infer their genotypes if you know something about how the trait is inherited, but the genotypes are what you directly use in the Punnett square. The phenotypes and genotypes of the offspring are what you predict using the Punnett square, not what you need to set it up.

To set up a Punnett square, you need the genotypes of the parents. A genotype refers to the set of genes an organism carries for a particular trait. In a Punnett square, the genotypes of the parents are used to predict the possible genotypes (and thus phenotypes) of their offspring. The phenotypes of the parents can help you infer their genotypes if you know something about how the trait is inherited, but the phenotypes of the offspring are not needed to set up the Punnett square. They are what you predict using the Punnett square.