And initially, changing the PH doesn't really change the amount of DNA molecules that exist in their double helix form. But as we approach a PH of nine, what we see happen is the slope becomes much more steep and much more negative. And so what that means is between the nine and ten PH values, a small change in the PH in the x value creates a very large change in the y value. And so the majority of those DNA molecules actually break down and associate into their single strand form between the PH nine and PH ten between this range. And by the time we get to a PH of ten, we see that less than 10% of those DNA molecules inside the nucleus actually exist in their double helix form. So we see that by increasing the PH or decreasing the PH, which is not shown in this diagram, our DNA molecules begin to break down into their single strand form.