Question

Explain the steps of the Lytic cycle in viral replication. Then explain how the lysogenic cycle is different from the lytic cycle (must give at least 2 differences)​

Answer 1

The lytic cycle has five steps, including attachment, penetration, synthesis, assembly, and release of viruses, resulting in the host cell's destruction.

Step-by-step explanation:

The Lytic Cycle

The steps of the lytic cycle in viral replication are as follows:

1. Viral attachment to the host cell.
2. Penetration of viral DNA or RNA into the host cell.
3. Synthesis of new viral proteins and nucleic acids within the host using its machinery.
4. Assembly of new virus particles.
5. Release of the new virions, typically by causing the cell to burst, or lyse.

Lysogenic vs Lytic Cycle

There are two main differences between the lysogenic and lytic cycles:

• In the lysogenic cycle, the viral DNA is incorporated into the host cell's genome and can replicate along with it, remaining dormant for a period.
• The lysogenic cycle does not immediately harm the host cell; it can later enter the lytic cycle under certain conditions, leading to cell death.

Thus, while the lytic cycle leads to rapid production of viruses and destruction of the host cell, the lysogenic cycle allows the virus to propagate without immediately killing the host.