And if we divide this quantity into this, we get a value of ten. So 34 angstroms divided by 3.4 angstroms gives us ten. And what that means is there are ten bases in every single turn of that DNA molecule. So what do we mean by turn? Well, let's begin on this point on our DNA molecule, on this strand. And when the strand basically makes a 360 degree turn, that is what we mean by single turn.