Don't worry, it should be. Your epidermis is the top part of your skin, and your skin is your body's largest and fastest-growing organ. Skin is your body's coat. It protects you. It helps you stay warm when it's cold, and cool when it's hot. Your skin keeps all your insides in, from your heart and lungs to your blood and muscles.
In the other population of cells, the injected phage chromosome turns OFF all the phage genes except one. The single phage chromosome called the prophage now becomes a part of the host chromosome. The bacterium carrying the dormant phage chromosome is called the lysogen.
However, under certain conditions, the phage DNA may integrate itself into the host cell chromosome in the lysogenic pathway. In this state, the Î» DNA is called a prophage and stays resident within the host's genome without apparent harm to the host. Soon, the phage switches to a rolling circle replication similar to that used by phage M13. 2  The DNA is nicked and the 3â end serves as a primer. 3  Note that this does not release single copies of the phage genome but rather one long molecule with many copies of the genome: a concatemer.