If blue eyes are dominant to green eyes, and two parents have a 50% chance of producing offspring with green eyes. What must the genotypes and phenotypes be for the parents of the offspring. Complete a punnett square to answer this question.

To determine the genotypes and phenotypes of the parents, we can use a Punnett square. However, we need more information about the genotypes of the parents.

If blue eyes (B) are dominant to green eyes (b), there are three possible genotypes for eye color: BB, Bb, and bb.

Since blue eyes are dominant, individuals with the BB or Bb genotype will have blue eyes, while individuals with the bb genotype will have green eyes.

To calculate the probability of producing offspring with green eyes, we need to determine the genotypes of both parents. Let's assume that one parent has the genotype Bb and the other parent has the genotype bb.

Using this information, we can set up the Punnett square:

b b
---------------------------
B | BB Bb
b | Bb bb

Based on this Punnett square, there is a 50% chance that the offspring will have green eyes (genotype bb) and a 50% chance that the offspring will have blue eyes (genotypes BB or Bb).

In summary, the parents' genotypes can be Bb (one parent) and bb (the other parent), and the phenotype of the offspring will have a 50% chance of green eyes and a 50% chance of blue eyes.