Viral nucleic acid that becomes part of the host cell's chromosomes is called

When viral DNA becomes integrated into the host cell's chromosome it is known as a?

Some bacterial viruses (bacteriophages) may undergo lysogeny following infection of host cells. In this case, the viral genome is integrated into host-cell chromosomes, forming a prophage that is replicated along with the host genome. When suitably activated, a prophage enters the lytic cycle