In peas, purple (P) flower color is dominant to white (p) and yellow (Y) seed color is dominant to green (y). A homozygous purple-flowered, heterozygous yellow-seeded plant is crossed with a heterozygous purple, green-seeded plant. What fraction of the offspring would be expected to be purple-flowered with green seeds?
O 1
O 1/4
O 1/2
O 0