And because of their lighter nature they're going to be less dense and so they're going to appear farther to the left along that x axis. Now, what do they see after a second cycle of division? So following a second division, a second replication, once we extract the DNA molecules from those cells, this is what we saw. Now we saw two individual bands and noticed that these two bands are separated. What that means is one band describes a lighter DNA molecule and the other one describes a heavier DNA molecule. Also notice that this second band is along the same, I guess, y direction, y axis as this band here.