Na certain plant species, the allele for wrinkled seeds (w) is dominant to the allele for smooth seeds. what is the phenotype result of a cross between a true-breeding wrinkle-seeded group of plants and a true-breeding smooth-seeded group of plants? a. 1/4 wrinkled seeds, 3/4 smooth seeds b. all smooth seeds, no wrinkled seeds c. 1/4 smooth seeds, 3/4 wrinkled seeds d. all wrinkled seeds, no smooth seeds