For a Particular Plant, Red Flowers (A)are Dominant Over Yellow

Essay

For a particular plant, red flowers (A)are dominant over yellow flowers (a).An initial cross was made between a plant that was ttrue-breeding for red flowers, and another plant ttrue-breeding for yellow flowers.F₁ progeny, all having red flowers, were allowed to form seeds, which were then planted to generate F₂ progeny.Pollen from all the resulting F₂ plants was pooled and used to fertilize ttrue-breeding yellow plants.What proportion of the progeny resulting from this cross would be expected to have yellow flowers?