Cross a trihybrid with purple flowers and yellow, round seeds (heterozygous for all traits) with a plant with purple flowers, yellow seed color and, wrinkled seeds (heterozygous for flower and seed color). What fraction of offspring from this cross are predicted to exhibit the recessive phenotypes for at least two of the three characters? You must show all of your work. Genotypes of parents, all Punnett boxes, possible genotypes that fulfill this condition, and your mathematical work.​