Why the 3:1 ratio appears

21:17when you have two dominant recessive as the parents. >> Yeah. The hetererozygous pair. >> The hetererozygous pair. And that's finally when you start to see from the original P1 >> Mhm. >> the recessive begin to appear, but also from the the the ma the math we you brought up earlier, it makes sense that only one it's always going to be 3 to one because of the way that it's uh this dynamic pair from each. >> Yes, exactly. It's always going to be 3 to1. So this is an empirical rule that he comes up with. It makes sense. And the the the other nice thing about this kind of mathematics is it explains something else which is the law of independent assortment.