So let's take this individual here. So we have the sperm cells are x lowercase by and then we have x uppercase B, and then x lowercase B. So this here is our opponent square. So we have x uppercase BX lowercase b, we have x lowercase BX lowercase b, we have x uppercase by and we have x lowercase by. So what this information tells us is it tells us that the female so this can either be heterozygous for that particular trade, so it can either have a normal phenotype but be a carrier, which is consistent with this right over here. So this individual, this female child is in fact the carrier, but they have a normal phenotype, they have normal vision.