BACK CROSS AND TEST CROSS

In Mendelian inheritance F2 offsprings are obtained by selfing the hybrid, but if the F1 hybrid is crossed to any of the pure breeding parents it is called a back cross. If the hybrid is crossed to the dominant parent, all the F2 offsprings will show dominant character.
If the hybrid is crossed to recessive parent, dominant and recessive phenotypes with appear in equal proportions as shown, which is called a test cross.