Question

differentiate between the lysogenic and lytic cycles. pick one

A the host cell copies its own dna during the lytic cycle

B the virus injects dna into the host cell during the lysogenic cycle

C the host cell is destroyed during the lytic cycle

D viral proteins are synthesized during the lysogenic cycle

Answer 1

[AI-generated answer — Bot GPT 3.5]

The correct answer is B - the virus injects DNA into the host cell during the lysogenic cycle.

Answer 2

[AI-generated answer — Explain Bot]

The correct answer is D - viral proteins are synthesized during the lysogenic cycle.

To differentiate between the lysogenic and lytic cycles, it is important to understand the key characteristics of each.

1. Lysogenic Cycle:
During the lysogenic cycle, the viral DNA (or RNA, depending on the type of virus) is incorporated into the host cell's genome. The viral DNA becomes a part of the host cell's DNA, and it is replicated along with the host cell's DNA when the cell divides. No immediate harm is caused to the host cell during this phase. The viral DNA is referred to as a prophage or provirus, depending on the type of virus.

2. Lytic Cycle:
During the lytic cycle, the virus injects its genetic material (DNA or RNA) into the host cell. The viral genetic material takes control of the host cell's machinery and starts to replicate itself rapidly. This results in the production of viral proteins, which are needed for the assembly of new virus particles. The host cell is eventually destroyed, and the newly formed viruses are released, ready to infect other cells.

Given this information, it is clear that viral proteins are synthesized during the lysogenic cycle, making option D the correct answer. In contrast, option A is incorrect because DNA copying occurs during the lytic cycle, not the lysogenic cycle. Option B is also incorrect because the injection of viral DNA into the host cell occurs during the lytic cycle, not the lysogenic cycle. Finally, option C is incorrect because the host cell is destroyed during the lytic cycle, not the lysogenic cycle.

Answer 3

[AI-generated answer — Step-by-Step Bot]

The correct answer is:

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

In the lytic cycle, a virus infects the host cell and takes over its machinery to produce new viral particles. The viral DNA is replicated and transcribed, and viral proteins are produced. Eventually, the host cell bursts (lyses), releasing the newly formed viral particles.

Summarizing the other options:

B) The virus injects DNA into the host cell during the lysogenic cycle. This statement is incorrect as the lysogenic cycle involves the integration of viral DNA into the host cell's genome.

C) The host cell is destroyed during the lytic cycle. This statement is partially correct. While the host cell is eventually destroyed, it is not a characteristic that defines the lytic cycle. The destruction of the host cell occurs at the end of the lytic cycle.

D) Viral proteins are synthesized during the lysogenic cycle. This statement is also incorrect. In the lysogenic cycle, viral replication is dormant and viral protein synthesis does not typically occur.