Lysogenic cycle

Lysogenic Cycle

The Lysogenic Cycle (pronunciation: /laɪˈsɒdʒɪk/), also known as the Lysogenic Pathway, is a method of viral replication that involves the incorporation of the viral genetic material into the host cell's genome.

Etymology

The term "Lysogenic" is derived from the Greek words "lysis," meaning "loosening" or "dissolving," and "genesis," meaning "origin" or "creation." It refers to the process where the viral genetic material is integrated into the host cell's genome without causing immediate destruction or lysis of the host.

Process

The Lysogenic Cycle begins when a bacteriophage (a type of virus that infects bacteria) attaches to a bacterium. The bacteriophage injects its genetic material into the bacterium, where it becomes a prophage. The prophage is then integrated into the bacterium's DNA.

During this cycle, the virus remains dormant within the host cell, which continues to live and reproduce normally. The viral DNA is replicated along with the host cell's DNA each time the cell divides. This allows the virus to propagate without killing the host cell.

Eventually, the prophage may exit the host's genome and enter the lytic cycle, where it replicates rapidly and causes the host cell to burst, releasing new virus particles.

Related Terms

• Bacteriophage
• Prophage
• Lytic Cycle
• Viral Replication
• Genome
• Lysis

External links

• Medical encyclopedia article on Lysogenic cycle
• Wikipedia's article - Lysogenic cycle

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