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. And this specific type of test cross is known as a monohybrybrid test cross because we're basically crossing two heterozygous individuals for a given trade for the high trait. Now what he found out was that 75% of the time, or about 75% of the time, the individuals were tall, but 25% of the time the individuals were short. So let's actually confirm this by using the pundit square.