The punnett square obtained by the dihybrid cross between two pea plants is shown in the table. both plants have genotype rryy. based on the above data, a student has concluded that the phenotypic ratio of dihybrid crosses is 9: 3: 3: 1. what comment would you make about the student's conclusion?
a) she is correct. the ratio should be 9: 3: 3: 1
b) she is incorrect. the ratio should be 9: 4: 2: 1
c) she is incorrect. the ratio should be 4: 4: 4: 4
d) she is incorrect. the ratio should be 9: 5: 1: 1