Below are the images of two pairs of homologous chromosomes. Which one represents the male's chromosomes before crossing over and which the male's chromosomes after crossing over?

What gametes will he produce after crossing over?

Now, perform a punnett square to determine what offspring will result.

Your punnett square should look similar to the one below. If it does not, review the material on gamete formation and how to set up the punnett square and try again.

Now, count up how many of the offspring have each genotype and phenotype.

Return to the question page and select the correct answers.