So it has two types of cycles. It has the lytic life cycle and it has the lysogenic life cycle. Now, in the lytic cycle, this is the dangerous cycle that ultimately kills that cell. In the lytic cycle, that bacteriophage essentially hijacks the machinery of that cell, the ribosomes and so forth. And so it produces many of these viral protein molecules and viral DNA molecules. And what it does is it assembles, it packages these viral molecules into these viral particles.