And what that means is both of these chromosomes carry genes that code for the same exact trait. So what that means is let's suppose that the purple chromosome contains the gene that codes for the hair color. That means the brown one will also contain the gene that codes for the hair color. That's exactly why these are homologous. So during S phase of interface, before meiosis actually takes place, we replicate each one of these individual chromosomes. So we replicate the purple one and we produce this, and we replicate the brown one, and we produce this.