Now the great thing about these lambda phages is they can live on essentially forever, and we can use them at any time to infect other bacterial cells and produce even more copies of that particular DNA fragment. So once we create that genomic library, by the way, this is what we call a genomic library. A genomic library is basically a collection of all the different types of genes found in that particular DNA molecule of that organism. And for the organism that contains this genome, we have only five genes. And so we have these five beakers that each contain a specific type of gene molecule within that lambda phage. So in step six now, we actually want to screen that genomic library to find that specific gene of interest.