And so he produced two of these plants. And so what he did next was he took the f one plant and he crossed it with itself. And what that basically means is he crossed two heterozygous offsprings. So we have uppercase T, uppercase T for one of the genes and we have a lowercase T and a lowercase T for the other genes. And so what this cross is it's a cross between a heterozygous individual and a heterozygous individual for the same exact trait. The trade in this case is Hyped.