So for simplification purposes, we have a genome in this diagram that only consists of five different genes. So we have this dark green gene, we have the red gene, light green gene, we have the dark purple gene and the light purple gene. Now we take restriction enzymes and we add restriction enzymes into that mixture. And what the restriction enzymes do is they cleave our genome into different fragments and these different fragments will contain the different genes. So we basically break our genome into these five fragments. Now, let's suppose that these five fragments all different size, so some are large and some are small.