And so once it cleaves those two phosphodiast bonds, we basically produce the following two fragments of DNA. And notice in this particular case, we have these staggered or uneven regions that we form. And these are commonly known as sticky ends because if we stick them back together, because they're complementary, they will essentially form those hydrogen bonds. And so we reform that strand that we essentially broke this into. So notice that the restriction enzyme cuts at a palindromic sequence shown in blue. The cut sides are symmetrically positioned along the two strands of DNA.