AP BIOLOGY

Detailed explanation-1: -The lysogenic cycle: The phage infects a bacterium and inserts its DNA into the bacterial chromosome, allowing the phage DNA (now called a prophage) to be copied and passed on along with the cell’s own DNA.

Detailed explanation-2: -Lysogenic cycle/infection: Non-bactericidal phage infection with phage genome replication but no virion production. Induction: Virus infection changes from a lysogenic cycle to a productive cycle. Chronic cycle/infection: Generally non-bactericidal phage infection, where virions are produced and continuously released.

Detailed explanation-3: -During the lysogenic cycle, instead of killing the host, the phage genome integrates into the bacterial chromosome and becomes part of the host. The integrated phage genome is called a prophage. A bacterial host with a prophage is called a lysogen.

Detailed explanation-4: -Since the bacteriophage’s genetic information is incorporated into the bacteria’s genetic information as a prophage, the bacteriophage replicates passively as the bacterium divides to form daughter bacteria cells. In this scenario, the daughter bacteria cells contain prophage and are known as lysogens.