In the video sent by my teacher on viruses, the example he used for lysogenic viruses was a bacteriophage infecting a bacteria. When he was describing how the genetic material was incorporated into the host cell's genetic material, he said something along the lines of:
Now the genetic material is incorporated into the cell's chromosome.
My question is, did he describe it as one main chromosome because that was the example being used? Or do lysogenic viruses only infect bacteria?
I guess a better way of phrasing this would be, are bacteriophages the only type of lysogenic viruses?