Corn 1. What are appropriate allele symbols for the purple and yellow seed colour? Explain your choice. 2. Create a Punnett square showing the expected ratio of phenotypes from crossing heterozygous corn plants. 3. Do your results support the predicted results for a monohybrid cross between two heterozygous individuals? Do the class results support the predicted results for a monohybrid cross between two heterozygous individuals? Explain any differences that you see