How is a virus reproduced during the lysogenic cycle?

The phage nucleic acid enters the host cell and becomes integratedpart of bacterial genome called prophage and behave like a segment of the host and replicates alongwoith it does not cause lysis

An example is toxin productionby the Diptheria bacillus which is determined by the presence of prophage beta. The elimination of prophage abolishes the toxigenicity of the bacillus