Differentiate between the lysogenic and lytic cycles.(1 point)

Question

Responses

The virus injects DNA into the host cell during the lysogenic cycle.
The virus injects DNA into the host cell during the lysogenic cycle.

The host cell is destroyed during the lytic cycle.
The host cell is destroyed during the lytic cycle.

Viral proteins are synthesized during the lysogenic cycle.
Viral proteins are synthesized during the lysogenic cycle.

The host cell copies its own DNA during the lytic cycle.

Answer 1

The key differences between the lysogenic and lytic cycles of viral replication are:

1. In the lysogenic cycle, the virus integrates its genetic material into the host cell's DNA and remains dormant, allowing the host cell to replicate the viral DNA along with its own without producing new viruses immediately.

2. In the lytic cycle, the virus replicates actively, synthesizing viral proteins and new viral particles, ultimately causing the host cell to lyse (break open), leading to the release of new viruses.

So in summary:

• The host cell is destroyed during the lytic cycle.
• The lysogenic cycle is characterized by the integration and dormancy of viral DNA in the host's genome, while the lytic cycle involves active viral replication and cell lysis.

Note: The statement "Viral proteins are synthesized during the lysogenic cycle" is incorrect; viral proteins are synthesized during the lytic cycle.

The correct points regarding your responses:

• "The host cell is destroyed during the lytic cycle." (True)
• "The virus injects DNA into the host cell during the lysogenic cycle." (True, but also occurs in the lytic cycle)
• "Viral proteins are synthesized during the lysogenic cycle." (False; they are synthesized during the lytic cycle)
• "The host cell copies its own DNA during the lytic cycle." (False; host DNA replication occurs in both cycles, but in the context of the lytic cycle, the main focus is on viral replication).