Calculate the offspring probability that the parents below produce the specific offspring listed?

If genes A through D are assorting independently, please calculate the probability that the parents below produce the specific offspring listed.
o AaBbCcDd x AaBbCcDd.
o aaBBCcDd.

Count the total number of boxes in your Punnett Square. This gives you the total number of predicted offspring. Divide the (number of occurrences of the phenotype) by (the total number of offspring). Multiply the number from step 4 by 100 to get your percent.