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

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.

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

Viral proteins are synthesized during the lysogenic cycle

1 answer

The key differences between the lysogenic and lytic cycles are as follows:

  1. Lysogenic Cycle: The virus integrates its DNA into the host cell's genome and replicates along with the host DNA without immediately destroying the host cell. The host cell does not die during this cycle; instead, the viral DNA can remain latent until it is activated.

  2. Lytic Cycle: The virus hijacks the host cell's machinery to replicate its own viral components, leading to the production of new viruses. This cycle culminates in the destruction of the host cell as it bursts (lyses) to release the newly formed viruses.

Based on your provided responses, the correct statements are:

  • The host cell is destroyed during the lytic cycle. (Correct)
  • The virus injects DNA into the host cell during the lysogenic cycle. (Correct, but the process primarily involves integration rather than just injection)

The other options regarding the host copying its own DNA during the lytic cycle and viral proteins being synthesized during the lysogenic cycle are inaccurate. In the lytic cycle, viral proteins are synthesized, and the host cell's own DNA is typically not the focus.