O Consider the diagram that depicts the lysogenic and lytic cycles. The steps of the lysogenic cycle are shown. In Step A, attachment and entry occurs. In step B, the provirus is formed. In step C, the cell begins to divide. In step D, the provirus leaves. In step E, the virus is replicated and assembled. In step F, lysis and release of the virus occurs. In which step of the diagram is the provirus formed? step A step B step E step F

The correct answer is Step B

Explanation:

The lysogenic and lytic cycles are processes of replication for viruses. These two processes involve different steps. In general, the first stage involves attachment and penetration as the virus enters the host cell. This step is followed by the provirus, which means the genome of the virus is integrated into the DNA of the cell, this step is also mentioned in the model as part of step B "the provirus is formed". Moreover, the formation of the provirus is key as the nutrients of the host cell and genome are used for replication. Thus, in the diagram, the provirus is formed in step B.

when you breathe in, or inhale, your diaphragm contracts (tightens) and moves downward. this increases the space in your chest cavity, into which your lungs expand. the intercostal muscles between your ribs also enlarge the chest cavity. they contract to pull your rib cage both upward and outward when you inhale.

the water is warmed up by the sun and then it evaporates into the atmosphere. the sunlight warms the water by its heat. water is then cooled down and condensation takes place. the water then finally returns back to the earth by the process of precipitation in the form of rain or ice.

explanation: