Now, before we examine that in more detail, let's answer the following question. So, what can we say about guanine, when the PH inside our nucleus of the cell is equal to the PKA of the guanine molecule? So, let's suppose, we look at the following curve. And along the curve, if we examine the PH of PKA of 9.7. So, if we're somewhere here, we see that the majority of these DNA molecules have dissociated. Why?