Two genetic hypotheses can explain the testcross data. How can we determine which hypothesis is correct. Like all good geneticists, Dr. Osterman made an effort to generate large numbers of offspring in his studies. He had made several test crosses that summer and each cross generated ears with several hundred seeds. Upon careful examination of the seeds on all the ears, Dr. Osterman did observe a few red shrunken and white plump kernels. The new combinations were rare but their appearance in the test cross progeny allows us to eliminate one of the genetic hypotheses. Which hypothesis can be ruled out?