which of the following is true concerning a lysogenic viral replication cycle? which of the following is true concerning a lysogenic viral replication cycle? once the lysogenic portion of the cycle has begun, virus is never produced again. lysogenic infections are similar to persistent infections in that virus is constantly produced. during lysogeny, the viral genome integrates into the host dna, becoming a physical part of the chromosome. during lysogeny, the viral dna is present as a circular plasmid.