Chapter 20, Problem 5STP

Summary Introduction

Introduction :

The lytic cycle involves reproducing viruses using a host cell to create more viruses; then, the viruses burst out of the cell. This is commonly referred to as the reproductive cycle which involves virus attachment, penetration, viral genome transcription, virion biosynthesis, and then host cell lysis.

Answer to Problem 5STP

Correct answer :

The correct answer is option (D) The virus takes over the cell, makes copies of itself, and usually kills the host cell.

Explanation of Solution

Explanation/justification for the correct answer :

Option (D) The virus takes over the cell, makes copies of itself, and usually kills the host cell.In lytic cycle of viral infection the virus get inside the cell replicate and transcript itself and then break the host cell. So, the correct answer is option (D).

Explanation for incorrect answer :

Option (A) The host cell becomes a factory that continually makes more copies. In lytic cycle once the replication and transcription process is over the virus lyse the host cell and need another host to make more copies of it. So, this is an incorrect option.

Option (B) The host cell undergoes cell division that makes more copies of the virus. The virus after penetration inside the host cells it undergoes replication and then transcription. So, this is an incorrect answer.

Option (C) The virus incorporated its nucleic acid into the DNA of the host cell and lies dormant. The virus penetrate its genome inside the host cell and finally break the cell to search for another host. So, this is an incorrect answer.