Crossing the F1 or F2 progeny with its recessive parent is called a test cross. Again, crossing the F1 or F2 progeny with its recessive or recessive parent is called a back cross. Crossing a tall bean (TT) with another short bean (tt) results in a tall bean (Tt) in the F1 progeny. Here the tall is the manifest and the short is the latent feature. A test cross is made by crossing the F1 progeny long bean (Tt) with the latent short bean (tt). Backcrossing of the F1 progeny with long beans (Tt) is done by crossing the dominant long bean (TT) or the latent short bean (tt).